Home / 77,478,937.74-106,925,769.77-42,671,618.96

Finding the Fourth Proportional to 77,478,937.74, 106,925,769.77 and 42,671,618.96

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Solution

The fourth proportional to 77,478,937.74, 106,925,769.77 and 42,671,618.96 is: 58,889,497.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,478,937.74 : 106,925,769.77 = 42,671,618.96 : x
  2. Step 2: Convert to fraction form
    77,478,937.74/106,925,769.77 = 42,671,618.96/x
  3. Step 3: Cross multiply
    77,478,937.74x = 106,925,769.77 × 42,671,618.96
  4. Step 4: Simplify right side
    77,478,937.74x = 4,562,695,703,882,140
  5. Step 5: Solve for x
    x = 4,562,695,703,882,140/77,478,937.74
  6. Step 6: Final answer
    x = 58,889,497.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.