Home / 145,678,859.40-218,518,289.10-144,828,553.80

Finding the Fourth Proportional to 145,678,859.40, 218,518,289.10 and 144,828,553.80

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Solution

The fourth proportional to 145,678,859.40, 218,518,289.10 and 144,828,553.80 is: 217,242,830.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,678,859.40 : 218,518,289.10 = 144,828,553.80 : x
  2. Step 2: Convert to fraction form
    145,678,859.40/218,518,289.10 = 144,828,553.80/x
  3. Step 3: Cross multiply
    145,678,859.40x = 218,518,289.10 × 144,828,553.80
  4. Step 4: Simplify right side
    145,678,859.40x = 31,647,687,789,203,304
  5. Step 5: Solve for x
    x = 31,647,687,789,203,304/145,678,859.40
  6. Step 6: Final answer
    x = 217,242,830.70

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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.