Home / 140,675,390.20-211,013,085.30-86,927,678.20

Finding the Fourth Proportional to 140,675,390.20, 211,013,085.30 and 86,927,678.20

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Solution

The fourth proportional to 140,675,390.20, 211,013,085.30 and 86,927,678.20 is: 130,391,517.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,675,390.20 : 211,013,085.30 = 86,927,678.20 : x
  2. Step 2: Convert to fraction form
    140,675,390.20/211,013,085.30 = 86,927,678.20/x
  3. Step 3: Cross multiply
    140,675,390.20x = 211,013,085.30 × 86,927,678.20
  4. Step 4: Simplify right side
    140,675,390.20x = 18,342,877,574,947,552
  5. Step 5: Solve for x
    x = 18,342,877,574,947,552/140,675,390.20
  6. Step 6: Final answer
    x = 130,391,517.30

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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.