Home / 100,375,882.62-138,518,786.28-56,316,799.32

Finding the Fourth Proportional to 100,375,882.62, 138,518,786.28 and 56,316,799.32

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Solution

The fourth proportional to 100,375,882.62, 138,518,786.28 and 56,316,799.32 is: 77,717,221.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,375,882.62 : 138,518,786.28 = 56,316,799.32 : x
  2. Step 2: Convert to fraction form
    100,375,882.62/138,518,786.28 = 56,316,799.32/x
  3. Step 3: Cross multiply
    100,375,882.62x = 138,518,786.28 × 56,316,799.32
  4. Step 4: Simplify right side
    100,375,882.62x = 7,800,934,688,980,729
  5. Step 5: Solve for x
    x = 7,800,934,688,980,729/100,375,882.62
  6. Step 6: Final answer
    x = 77,717,221.36

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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.