Home / 103,078,853-142,245,192.66-56,668,769

Finding the Fourth Proportional to 103,078,853, 142,245,192.66 and 56,668,769

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Solution

The fourth proportional to 103,078,853, 142,245,192.66 and 56,668,769 is: 78,200,908.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,078,853 : 142,245,192.66 = 56,668,769 : x
  2. Step 2: Convert to fraction form
    103,078,853/142,245,192.66 = 56,668,769/x
  3. Step 3: Cross multiply
    103,078,853x = 142,245,192.66 × 56,668,769
  4. Step 4: Simplify right side
    103,078,853x = 8,060,859,964,210,035
  5. Step 5: Solve for x
    x = 8,060,859,964,210,035/103,078,853
  6. Step 6: Final answer
    x = 78,200,908.62

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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.