Home / 66,960,048.60-100,440,072.90-28,625,437.80

Finding the Fourth Proportional to 66,960,048.60, 100,440,072.90 and 28,625,437.80

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Solution

The fourth proportional to 66,960,048.60, 100,440,072.90 and 28,625,437.80 is: 42,938,156.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,960,048.60 : 100,440,072.90 = 28,625,437.80 : x
  2. Step 2: Convert to fraction form
    66,960,048.60/100,440,072.90 = 28,625,437.80/x
  3. Step 3: Cross multiply
    66,960,048.60x = 100,440,072.90 × 28,625,437.80
  4. Step 4: Simplify right side
    66,960,048.60x = 2,875,141,059,426,416
  5. Step 5: Solve for x
    x = 2,875,141,059,426,416/66,960,048.60
  6. Step 6: Final answer
    x = 42,938,156.70

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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.