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Finding the Fourth Proportional to 42,604,672.60, 63,907,008.90 and 13,851,746.20

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Solution

The fourth proportional to 42,604,672.60, 63,907,008.90 and 13,851,746.20 is: 20,777,619.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,604,672.60 : 63,907,008.90 = 13,851,746.20 : x
  2. Step 2: Convert to fraction form
    42,604,672.60/63,907,008.90 = 13,851,746.20/x
  3. Step 3: Cross multiply
    42,604,672.60x = 63,907,008.90 × 13,851,746.20
  4. Step 4: Simplify right side
    42,604,672.60x = 885,223,667,683,941.12
  5. Step 5: Solve for x
    x = 885,223,667,683,941.12/42,604,672.60
  6. Step 6: Final answer
    x = 20,777,619.30

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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.