Home / 258,117,815.20-387,176,722.80-237,710,480.80

Finding the Fourth Proportional to 258,117,815.20, 387,176,722.80 and 237,710,480.80

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Solution

The fourth proportional to 258,117,815.20, 387,176,722.80 and 237,710,480.80 is: 356,565,721.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,117,815.20 : 387,176,722.80 = 237,710,480.80 : x
  2. Step 2: Convert to fraction form
    258,117,815.20/387,176,722.80 = 237,710,480.80/x
  3. Step 3: Cross multiply
    258,117,815.20x = 387,176,722.80 × 237,710,480.80
  4. Step 4: Simplify right side
    258,117,815.20x = 92,035,964,931,356,336
  5. Step 5: Solve for x
    x = 92,035,964,931,356,336/258,117,815.20
  6. Step 6: Final answer
    x = 356,565,721.20

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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.