Home / 56,918,622.11-78,547,608.56-30,813,132.11

Finding the Fourth Proportional to 56,918,622.11, 78,547,608.56 and 30,813,132.11

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Solution

The fourth proportional to 56,918,622.11, 78,547,608.56 and 30,813,132.11 is: 42,522,073.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,918,622.11 : 78,547,608.56 = 30,813,132.11 : x
  2. Step 2: Convert to fraction form
    56,918,622.11/78,547,608.56 = 30,813,132.11/x
  3. Step 3: Cross multiply
    56,918,622.11x = 78,547,608.56 × 30,813,132.11
  4. Step 4: Simplify right side
    56,918,622.11x = 2,420,297,839,168,141.50
  5. Step 5: Solve for x
    x = 2,420,297,839,168,141.50/56,918,622.11
  6. Step 6: Final answer
    x = 42,522,073.61

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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.