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Finding the Fourth Proportional to 64,483,698.93, 88,985,166.85 and 39,407,760.30

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Solution

The fourth proportional to 64,483,698.93, 88,985,166.85 and 39,407,760.30 is: 54,381,280.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,483,698.93 : 88,985,166.85 = 39,407,760.30 : x
  2. Step 2: Convert to fraction form
    64,483,698.93/88,985,166.85 = 39,407,760.30/x
  3. Step 3: Cross multiply
    64,483,698.93x = 88,985,166.85 × 39,407,760.30
  4. Step 4: Simplify right side
    64,483,698.93x = 3,506,706,124,936,861
  5. Step 5: Solve for x
    x = 3,506,706,124,936,861/64,483,698.93
  6. Step 6: Final answer
    x = 54,381,280.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.