Home / 56,918,806.79-78,547,979.65-30,813,324.62

Finding the Fourth Proportional to 56,918,806.79, 78,547,979.65 and 30,813,324.62

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Solution

The fourth proportional to 56,918,806.79, 78,547,979.65 and 30,813,324.62 is: 42,522,402.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,918,806.79 : 78,547,979.65 = 30,813,324.62 : x
  2. Step 2: Convert to fraction form
    56,918,806.79/78,547,979.65 = 30,813,324.62/x
  3. Step 3: Cross multiply
    56,918,806.79x = 78,547,979.65 × 30,813,324.62
  4. Step 4: Simplify right side
    56,918,806.79x = 2,420,324,395,701,959
  5. Step 5: Solve for x
    x = 2,420,324,395,701,959/56,918,806.79
  6. Step 6: Final answer
    x = 42,522,402.21

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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.