Home / 315,434,309,762.90-473,147,331,753.60-76,668,265,221.12

Finding the Fourth Proportional to 315,434,309,762.90, 473,147,331,753.60 and 76,668,265,221.12

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Solution

The fourth proportional to 315,434,309,762.90, 473,147,331,753.60 and 76,668,265,221.12 is: 115,001,393,306.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,434,309,762.90 : 473,147,331,753.60 = 76,668,265,221.12 : x
  2. Step 2: Convert to fraction form
    315,434,309,762.90/473,147,331,753.60 = 76,668,265,221.12/x
  3. Step 3: Cross multiply
    315,434,309,762.90x = 473,147,331,753.60 × 76,668,265,221.12
  4. Step 4: Simplify right side
    315,434,309,762.90x = 36,275,385,119,550,251,991,040
  5. Step 5: Solve for x
    x = 36,275,385,119,550,251,991,040/315,434,309,762.90
  6. Step 6: Final answer
    x = 115,001,393,306.95

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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.