Home / 79,871,520.60-119,807,280.90-71,262,176.40

Finding the Fourth Proportional to 79,871,520.60, 119,807,280.90 and 71,262,176.40

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Solution

The fourth proportional to 79,871,520.60, 119,807,280.90 and 71,262,176.40 is: 106,893,264.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,871,520.60 : 119,807,280.90 = 71,262,176.40 : x
  2. Step 2: Convert to fraction form
    79,871,520.60/119,807,280.90 = 71,262,176.40/x
  3. Step 3: Cross multiply
    79,871,520.60x = 119,807,280.90 × 71,262,176.40
  4. Step 4: Simplify right side
    79,871,520.60x = 8,537,727,585,500,152
  5. Step 5: Solve for x
    x = 8,537,727,585,500,152/79,871,520.60
  6. Step 6: Final answer
    x = 106,893,264.60

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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.