Home / 117,252,012.80-175,878,019.20-86,641,011.20

Finding the Fourth Proportional to 117,252,012.80, 175,878,019.20 and 86,641,011.20

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Solution

The fourth proportional to 117,252,012.80, 175,878,019.20 and 86,641,011.20 is: 129,961,516.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,252,012.80 : 175,878,019.20 = 86,641,011.20 : x
  2. Step 2: Convert to fraction form
    117,252,012.80/175,878,019.20 = 86,641,011.20/x
  3. Step 3: Cross multiply
    117,252,012.80x = 175,878,019.20 × 86,641,011.20
  4. Step 4: Simplify right side
    117,252,012.80x = 15,238,249,431,341,014
  5. Step 5: Solve for x
    x = 15,238,249,431,341,014/117,252,012.80
  6. Step 6: Final answer
    x = 129,961,516.80

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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.