Home / 125,208,009.20-187,812,013.80-102,514,530.80

Finding the Fourth Proportional to 125,208,009.20, 187,812,013.80 and 102,514,530.80

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Solution

The fourth proportional to 125,208,009.20, 187,812,013.80 and 102,514,530.80 is: 153,771,796.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,208,009.20 : 187,812,013.80 = 102,514,530.80 : x
  2. Step 2: Convert to fraction form
    125,208,009.20/187,812,013.80 = 102,514,530.80/x
  3. Step 3: Cross multiply
    125,208,009.20x = 187,812,013.80 × 102,514,530.80
  4. Step 4: Simplify right side
    125,208,009.20x = 19,253,460,473,310,124
  5. Step 5: Solve for x
    x = 19,253,460,473,310,124/125,208,009.20
  6. Step 6: Final answer
    x = 153,771,796.20

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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.