Home / 318,866,999.10-478,300,498.65-291,657,219.90

Finding the Fourth Proportional to 318,866,999.10, 478,300,498.65 and 291,657,219.90

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Solution

The fourth proportional to 318,866,999.10, 478,300,498.65 and 291,657,219.90 is: 437,485,829.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,866,999.10 : 478,300,498.65 = 291,657,219.90 : x
  2. Step 2: Convert to fraction form
    318,866,999.10/478,300,498.65 = 291,657,219.90/x
  3. Step 3: Cross multiply
    318,866,999.10x = 478,300,498.65 × 291,657,219.90
  4. Step 4: Simplify right side
    318,866,999.10x = 139,499,793,713,042,688
  5. Step 5: Solve for x
    x = 139,499,793,713,042,688/318,866,999.10
  6. Step 6: Final answer
    x = 437,485,829.85

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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.