Home / 1,394,165,415.40-2,091,248,123.10-1,243,671,821.80

Finding the Fourth Proportional to 1,394,165,415.40, 2,091,248,123.10 and 1,243,671,821.80

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Solution

The fourth proportional to 1,394,165,415.40, 2,091,248,123.10 and 1,243,671,821.80 is: 1,865,507,732.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,394,165,415.40 : 2,091,248,123.10 = 1,243,671,821.80 : x
  2. Step 2: Convert to fraction form
    1,394,165,415.40/2,091,248,123.10 = 1,243,671,821.80/x
  3. Step 3: Cross multiply
    1,394,165,415.40x = 2,091,248,123.10 × 1,243,671,821.80
  4. Step 4: Simplify right side
    1,394,165,415.40x = 2,600,826,363,091,607,552
  5. Step 5: Solve for x
    x = 2,600,826,363,091,607,552/1,394,165,415.40
  6. Step 6: Final answer
    x = 1,865,507,732.70

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Double scale
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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.