Home / 20,051,914,041.81-30,078,870,128.13-7,631,207,259.58

Finding the Fourth Proportional to 20,051,914,041.81, 30,078,870,128.13 and 7,631,207,259.58

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Solution

The fourth proportional to 20,051,914,041.81, 30,078,870,128.13 and 7,631,207,259.58 is: 11,447,191,106.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,051,914,041.81 : 30,078,870,128.13 = 7,631,207,259.58 : x
  2. Step 2: Convert to fraction form
    20,051,914,041.81/30,078,870,128.13 = 7,631,207,259.58/x
  3. Step 3: Cross multiply
    20,051,914,041.81x = 30,078,870,128.13 × 7,631,207,259.58
  4. Step 4: Simplify right side
    20,051,914,041.81x = 229,538,092,081,749,655,552
  5. Step 5: Solve for x
    x = 229,538,092,081,749,655,552/20,051,914,041.81
  6. Step 6: Final answer
    x = 11,447,191,106.20

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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.