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Finding the Fourth Proportional to 318,323,895.54, 477,485,802.81 and 88,292,978.94

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Solution

The fourth proportional to 318,323,895.54, 477,485,802.81 and 88,292,978.94 is: 132,439,457.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,323,895.54 : 477,485,802.81 = 88,292,978.94 : x
  2. Step 2: Convert to fraction form
    318,323,895.54/477,485,802.81 = 88,292,978.94/x
  3. Step 3: Cross multiply
    318,323,895.54x = 477,485,802.81 × 88,292,978.94
  4. Step 4: Simplify right side
    318,323,895.54x = 42,158,643,931,652,320
  5. Step 5: Solve for x
    x = 42,158,643,931,652,320/318,323,895.54
  6. Step 6: Final answer
    x = 132,439,457.18

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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.