Home / 1,369,442,976.38-1,889,671,874.78-766,646,607.73

Finding the Fourth Proportional to 1,369,442,976.38, 1,889,671,874.78 and 766,646,607.73

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Solution

The fourth proportional to 1,369,442,976.38, 1,889,671,874.78 and 766,646,607.73 is: 1,057,883,064.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,369,442,976.38 : 1,889,671,874.78 = 766,646,607.73 : x
  2. Step 2: Convert to fraction form
    1,369,442,976.38/1,889,671,874.78 = 766,646,607.73/x
  3. Step 3: Cross multiply
    1,369,442,976.38x = 1,889,671,874.78 × 766,646,607.73
  4. Step 4: Simplify right side
    1,369,442,976.38x = 1,448,710,532,520,068,608
  5. Step 5: Solve for x
    x = 1,448,710,532,520,068,608/1,369,442,976.38
  6. Step 6: Final answer
    x = 1,057,883,064.50

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1.5x scale

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.