Home / 66,486,667.20-99,730,000.80-59,544,254.40

Finding the Fourth Proportional to 66,486,667.20, 99,730,000.80 and 59,544,254.40

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Solution

The fourth proportional to 66,486,667.20, 99,730,000.80 and 59,544,254.40 is: 89,316,381.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,486,667.20 : 99,730,000.80 = 59,544,254.40 : x
  2. Step 2: Convert to fraction form
    66,486,667.20/99,730,000.80 = 59,544,254.40/x
  3. Step 3: Cross multiply
    66,486,667.20x = 99,730,000.80 × 59,544,254.40
  4. Step 4: Simplify right side
    66,486,667.20x = 5,938,348,538,947,403
  5. Step 5: Solve for x
    x = 5,938,348,538,947,403/66,486,667.20
  6. Step 6: Final answer
    x = 89,316,381.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.