Home / 117,252,013.80-175,878,020.70-86,641,012.20

Finding the Fourth Proportional to 117,252,013.80, 175,878,020.70 and 86,641,012.20

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Solution

The fourth proportional to 117,252,013.80, 175,878,020.70 and 86,641,012.20 is: 129,961,518.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,252,013.80 : 175,878,020.70 = 86,641,012.20 : x
  2. Step 2: Convert to fraction form
    117,252,013.80/175,878,020.70 = 86,641,012.20/x
  3. Step 3: Cross multiply
    117,252,013.80x = 175,878,020.70 × 86,641,012.20
  4. Step 4: Simplify right side
    117,252,013.80x = 15,238,249,737,180,552
  5. Step 5: Solve for x
    x = 15,238,249,737,180,552/117,252,013.80
  6. Step 6: Final answer
    x = 129,961,518.30

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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.