Home / 42,960,768-64,482,769.44-40,627,669.38

Finding the Fourth Proportional to 42,960,768, 64,482,769.44 and 40,627,669.38

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Solution

The fourth proportional to 42,960,768, 64,482,769.44 and 40,627,669.38 is: 60,980,861.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,960,768 : 64,482,769.44 = 40,627,669.38 : x
  2. Step 2: Convert to fraction form
    42,960,768/64,482,769.44 = 40,627,669.38/x
  3. Step 3: Cross multiply
    42,960,768x = 64,482,769.44 × 40,627,669.38
  4. Step 4: Simplify right side
    42,960,768x = 2,619,784,637,515,088
  5. Step 5: Solve for x
    x = 2,619,784,637,515,088/42,960,768
  6. Step 6: Final answer
    x = 60,980,861.36

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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.