Home / 3,919,212,139.20-5,878,818,208.80-1,742,429,803.20

Finding the Fourth Proportional to 3,919,212,139.20, 5,878,818,208.80 and 1,742,429,803.20

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Solution

The fourth proportional to 3,919,212,139.20, 5,878,818,208.80 and 1,742,429,803.20 is: 2,613,644,704.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,919,212,139.20 : 5,878,818,208.80 = 1,742,429,803.20 : x
  2. Step 2: Convert to fraction form
    3,919,212,139.20/5,878,818,208.80 = 1,742,429,803.20/x
  3. Step 3: Cross multiply
    3,919,212,139.20x = 5,878,818,208.80 × 1,742,429,803.20
  4. Step 4: Simplify right side
    3,919,212,139.20x = 10,243,428,054,607,962,112
  5. Step 5: Solve for x
    x = 10,243,428,054,607,962,112/3,919,212,139.20
  6. Step 6: Final answer
    x = 2,613,644,704.80

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Double scale
Find fourth proportional to 3,919,212,140.20, 5,878,818,210.30 and 1,742,429,804.20
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.