Home / 14,340,165,430.78-19,789,447,357.74-7,909,841,204.20

Finding the Fourth Proportional to 14,340,165,430.78, 19,789,447,357.74 and 7,909,841,204.20

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Solution

The fourth proportional to 14,340,165,430.78, 19,789,447,357.74 and 7,909,841,204.20 is: 10,915,591,376.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,340,165,430.78 : 19,789,447,357.74 = 7,909,841,204.20 : x
  2. Step 2: Convert to fraction form
    14,340,165,430.78/19,789,447,357.74 = 7,909,841,204.20/x
  3. Step 3: Cross multiply
    14,340,165,430.78x = 19,789,447,357.74 × 7,909,841,204.20
  4. Step 4: Simplify right side
    14,340,165,430.78x = 156,531,386,118,598,688,768
  5. Step 5: Solve for x
    x = 156,531,386,118,598,688,768/14,340,165,430.78
  6. Step 6: Final answer
    x = 10,915,591,376.83

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.