Home / 145,280,999.30-217,921,498.95-64,416,128.90

Finding the Fourth Proportional to 145,280,999.30, 217,921,498.95 and 64,416,128.90

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Solution

The fourth proportional to 145,280,999.30, 217,921,498.95 and 64,416,128.90 is: 96,624,193.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,280,999.30 : 217,921,498.95 = 64,416,128.90 : x
  2. Step 2: Convert to fraction form
    145,280,999.30/217,921,498.95 = 64,416,128.90/x
  3. Step 3: Cross multiply
    145,280,999.30x = 217,921,498.95 × 64,416,128.90
  4. Step 4: Simplify right side
    145,280,999.30x = 14,037,659,366,444,414
  5. Step 5: Solve for x
    x = 14,037,659,366,444,414/145,280,999.30
  6. Step 6: Final answer
    x = 96,624,193.35

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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.