Home / 99,640,023.30-149,460,034.95-72,430,244.10

Finding the Fourth Proportional to 99,640,023.30, 149,460,034.95 and 72,430,244.10

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Solution

The fourth proportional to 99,640,023.30, 149,460,034.95 and 72,430,244.10 is: 108,645,366.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,640,023.30 : 149,460,034.95 = 72,430,244.10 : x
  2. Step 2: Convert to fraction form
    99,640,023.30/149,460,034.95 = 72,430,244.10/x
  3. Step 3: Cross multiply
    99,640,023.30x = 149,460,034.95 × 72,430,244.10
  4. Step 4: Simplify right side
    99,640,023.30x = 10,825,426,814,623,030
  5. Step 5: Solve for x
    x = 10,825,426,814,623,030/99,640,023.30
  6. Step 6: Final answer
    x = 108,645,366.15

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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.