Home / 72,168,547.80-108,252,821.70-65,002,186.20

Finding the Fourth Proportional to 72,168,547.80, 108,252,821.70 and 65,002,186.20

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Solution

The fourth proportional to 72,168,547.80, 108,252,821.70 and 65,002,186.20 is: 97,503,279.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,168,547.80 : 108,252,821.70 = 65,002,186.20 : x
  2. Step 2: Convert to fraction form
    72,168,547.80/108,252,821.70 = 65,002,186.20/x
  3. Step 3: Cross multiply
    72,168,547.80x = 108,252,821.70 × 65,002,186.20
  4. Step 4: Simplify right side
    72,168,547.80x = 7,036,670,072,818,801
  5. Step 5: Solve for x
    x = 7,036,670,072,818,801/72,168,547.80
  6. Step 6: Final answer
    x = 97,503,279.30

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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.