Home / 258,328,897.20-387,054,856.20-155,877,658.80

Finding the Fourth Proportional to 258,328,897.20, 387,054,856.20 and 155,877,658.80

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Solution

The fourth proportional to 258,328,897.20, 387,054,856.20 and 155,877,658.80 is: 233,551,900.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,328,897.20 : 387,054,856.20 = 155,877,658.80 : x
  2. Step 2: Convert to fraction form
    258,328,897.20/387,054,856.20 = 155,877,658.80/x
  3. Step 3: Cross multiply
    258,328,897.20x = 387,054,856.20 × 155,877,658.80
  4. Step 4: Simplify right side
    258,328,897.20x = 60,333,204,811,626,664
  5. Step 5: Solve for x
    x = 60,333,204,811,626,664/258,328,897.20
  6. Step 6: Final answer
    x = 233,551,900.18

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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.