Home / 839,810,977.60-1,259,716,466.40-805,798,753.60

Finding the Fourth Proportional to 839,810,977.60, 1,259,716,466.40 and 805,798,753.60

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Solution

The fourth proportional to 839,810,977.60, 1,259,716,466.40 and 805,798,753.60 is: 1,208,698,130.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,810,977.60 : 1,259,716,466.40 = 805,798,753.60 : x
  2. Step 2: Convert to fraction form
    839,810,977.60/1,259,716,466.40 = 805,798,753.60/x
  3. Step 3: Cross multiply
    839,810,977.60x = 1,259,716,466.40 × 805,798,753.60
  4. Step 4: Simplify right side
    839,810,977.60x = 1,015,077,958,514,516,352
  5. Step 5: Solve for x
    x = 1,015,077,958,514,516,352/839,810,977.60
  6. Step 6: Final answer
    x = 1,208,698,130.40

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Double scale
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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.