Home / 490,710,487.80-735,440,541.30-260,789,719.80

Finding the Fourth Proportional to 490,710,487.80, 735,440,541.30 and 260,789,719.80

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Solution

The fourth proportional to 490,710,487.80, 735,440,541.30 and 260,789,719.80 is: 390,852,320.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,710,487.80 : 735,440,541.30 = 260,789,719.80 : x
  2. Step 2: Convert to fraction form
    490,710,487.80/735,440,541.30 = 260,789,719.80/x
  3. Step 3: Cross multiply
    490,710,487.80x = 735,440,541.30 × 260,789,719.80
  4. Step 4: Simplify right side
    490,710,487.80x = 191,795,332,695,187,328
  5. Step 5: Solve for x
    x = 191,795,332,695,187,328/490,710,487.80
  6. Step 6: Final answer
    x = 390,852,320.18

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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.