Home / 632,129,965.79-947,763,983.20-320,636,937.00

Finding the Fourth Proportional to 632,129,965.79, 947,763,983.20 and 320,636,937.00

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Solution

The fourth proportional to 632,129,965.79, 947,763,983.20 and 320,636,937.00 is: 480,736,805.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,129,965.79 : 947,763,983.20 = 320,636,937.00 : x
  2. Step 2: Convert to fraction form
    632,129,965.79/947,763,983.20 = 320,636,937.00/x
  3. Step 3: Cross multiply
    632,129,965.79x = 947,763,983.20 × 320,636,937.00
  4. Step 4: Simplify right side
    632,129,965.79x = 303,888,140,575,513,216
  5. Step 5: Solve for x
    x = 303,888,140,575,513,216/632,129,965.79
  6. Step 6: Final answer
    x = 480,736,805.76

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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.