Home / 1,429,272,029.70-2,143,908,044.55-509,178,384.90

Finding the Fourth Proportional to 1,429,272,029.70, 2,143,908,044.55 and 509,178,384.90

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Solution

The fourth proportional to 1,429,272,029.70, 2,143,908,044.55 and 509,178,384.90 is: 763,767,577.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,429,272,029.70 : 2,143,908,044.55 = 509,178,384.90 : x
  2. Step 2: Convert to fraction form
    1,429,272,029.70/2,143,908,044.55 = 509,178,384.90/x
  3. Step 3: Cross multiply
    1,429,272,029.70x = 2,143,908,044.55 × 509,178,384.90
  4. Step 4: Simplify right side
    1,429,272,029.70x = 1,091,631,635,498,086,144
  5. Step 5: Solve for x
    x = 1,091,631,635,498,086,144/1,429,272,029.70
  6. Step 6: Final answer
    x = 763,767,577.35

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Double scale
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Similar ratio
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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.