Home / 742,724,547.60-1,024,982,930.48-408,190,983.20

Finding the Fourth Proportional to 742,724,547.60, 1,024,982,930.48 and 408,190,983.20

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Solution

The fourth proportional to 742,724,547.60, 1,024,982,930.48 and 408,190,983.20 is: 563,316,227.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,724,547.60 : 1,024,982,930.48 = 408,190,983.20 : x
  2. Step 2: Convert to fraction form
    742,724,547.60/1,024,982,930.48 = 408,190,983.20/x
  3. Step 3: Cross multiply
    742,724,547.60x = 1,024,982,930.48 × 408,190,983.20
  4. Step 4: Simplify right side
    742,724,547.60x = 418,388,790,155,848,448
  5. Step 5: Solve for x
    x = 418,388,790,155,848,448/742,724,547.60
  6. Step 6: Final answer
    x = 563,316,227.41

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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.