Home / 72,617,885.85-100,209,765-39,577,426.14

Finding the Fourth Proportional to 72,617,885.85, 100,209,765 and 39,577,426.14

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Solution

The fourth proportional to 72,617,885.85, 100,209,765 and 39,577,426.14 is: 54,615,258.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,617,885.85 : 100,209,765 = 39,577,426.14 : x
  2. Step 2: Convert to fraction form
    72,617,885.85/100,209,765 = 39,577,426.14/x
  3. Step 3: Cross multiply
    72,617,885.85x = 100,209,765 × 39,577,426.14
  4. Step 4: Simplify right side
    72,617,885.85x = 3,966,044,572,794,257
  5. Step 5: Solve for x
    x = 3,966,044,572,794,257/72,617,885.85
  6. Step 6: Final answer
    x = 54,615,258.02

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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.