Home / 42,105,280.80-63,157,921.20-25,878,615.60

Finding the Fourth Proportional to 42,105,280.80, 63,157,921.20 and 25,878,615.60

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Solution

The fourth proportional to 42,105,280.80, 63,157,921.20 and 25,878,615.60 is: 38,817,923.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,105,280.80 : 63,157,921.20 = 25,878,615.60 : x
  2. Step 2: Convert to fraction form
    42,105,280.80/63,157,921.20 = 25,878,615.60/x
  3. Step 3: Cross multiply
    42,105,280.80x = 63,157,921.20 × 25,878,615.60
  4. Step 4: Simplify right side
    42,105,280.80x = 1,634,439,564,829,891
  5. Step 5: Solve for x
    x = 1,634,439,564,829,891/42,105,280.80
  6. Step 6: Final answer
    x = 38,817,923.40

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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.