Home / 684,299,218.60-1,024,433,288.70-644,436,332.20

Finding the Fourth Proportional to 684,299,218.60, 1,024,433,288.70 and 644,436,332.20

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Solution

The fourth proportional to 684,299,218.60, 1,024,433,288.70 and 644,436,332.20 is: 964,756,371.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,299,218.60 : 1,024,433,288.70 = 644,436,332.20 : x
  2. Step 2: Convert to fraction form
    684,299,218.60/1,024,433,288.70 = 644,436,332.20/x
  3. Step 3: Cross multiply
    684,299,218.60x = 1,024,433,288.70 × 644,436,332.20
  4. Step 4: Simplify right side
    684,299,218.60x = 660,182,031,153,411,840
  5. Step 5: Solve for x
    x = 660,182,031,153,411,840/684,299,218.60
  6. Step 6: Final answer
    x = 964,756,371.50

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Double scale
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1.5x scale

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.