Home / 140,675,381.20-211,013,071.80-86,927,669.20

Finding the Fourth Proportional to 140,675,381.20, 211,013,071.80 and 86,927,669.20

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Solution

The fourth proportional to 140,675,381.20, 211,013,071.80 and 86,927,669.20 is: 130,391,503.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,675,381.20 : 211,013,071.80 = 86,927,669.20 : x
  2. Step 2: Convert to fraction form
    140,675,381.20/211,013,071.80 = 86,927,669.20/x
  3. Step 3: Cross multiply
    140,675,381.20x = 211,013,071.80 × 86,927,669.20
  4. Step 4: Simplify right side
    140,675,381.20x = 18,342,874,502,306,252
  5. Step 5: Solve for x
    x = 18,342,874,502,306,252/140,675,381.20
  6. Step 6: Final answer
    x = 130,391,503.80

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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.