Home / 67,872,005.60-102,020,584.80-66,596,547.20

Finding the Fourth Proportional to 67,872,005.60, 102,020,584.80 and 66,596,547.20

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Solution

The fourth proportional to 67,872,005.60, 102,020,584.80 and 66,596,547.20 is: 100,103,402.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,872,005.60 : 102,020,584.80 = 66,596,547.20 : x
  2. Step 2: Convert to fraction form
    67,872,005.60/102,020,584.80 = 66,596,547.20/x
  3. Step 3: Cross multiply
    67,872,005.60x = 102,020,584.80 × 66,596,547.20
  4. Step 4: Simplify right side
    67,872,005.60x = 6,794,218,691,004,803
  5. Step 5: Solve for x
    x = 6,794,218,691,004,803/67,872,005.60
  6. Step 6: Final answer
    x = 100,103,402.44

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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.