Home / 124,762,977.60-187,156,972.80-42,871,070.40

Finding the Fourth Proportional to 124,762,977.60, 187,156,972.80 and 42,871,070.40

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Solution

The fourth proportional to 124,762,977.60, 187,156,972.80 and 42,871,070.40 is: 64,310,903.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,762,977.60 : 187,156,972.80 = 42,871,070.40 : x
  2. Step 2: Convert to fraction form
    124,762,977.60/187,156,972.80 = 42,871,070.40/x
  3. Step 3: Cross multiply
    124,762,977.60x = 187,156,972.80 × 42,871,070.40
  4. Step 4: Simplify right side
    124,762,977.60x = 8,023,619,756,759,685
  5. Step 5: Solve for x
    x = 8,023,619,756,759,685/124,762,977.60
  6. Step 6: Final answer
    x = 64,310,903.05

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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.