Home / 111,506,689.20-167,260,033.80-87,320,218.80

Finding the Fourth Proportional to 111,506,689.20, 167,260,033.80 and 87,320,218.80

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Solution

The fourth proportional to 111,506,689.20, 167,260,033.80 and 87,320,218.80 is: 130,980,328.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,506,689.20 : 167,260,033.80 = 87,320,218.80 : x
  2. Step 2: Convert to fraction form
    111,506,689.20/167,260,033.80 = 87,320,218.80/x
  3. Step 3: Cross multiply
    111,506,689.20x = 167,260,033.80 × 87,320,218.80
  4. Step 4: Simplify right side
    111,506,689.20x = 14,605,182,747,911,396
  5. Step 5: Solve for x
    x = 14,605,182,747,911,396/111,506,689.20
  6. Step 6: Final answer
    x = 130,980,328.20

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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.