Home / 1,678,971,859.60-2,518,457,789.40-805,123,423.30

Finding the Fourth Proportional to 1,678,971,859.60, 2,518,457,789.40 and 805,123,423.30

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Solution

The fourth proportional to 1,678,971,859.60, 2,518,457,789.40 and 805,123,423.30 is: 1,207,685,134.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,678,971,859.60 : 2,518,457,789.40 = 805,123,423.30 : x
  2. Step 2: Convert to fraction form
    1,678,971,859.60/2,518,457,789.40 = 805,123,423.30/x
  3. Step 3: Cross multiply
    1,678,971,859.60x = 2,518,457,789.40 × 805,123,423.30
  4. Step 4: Simplify right side
    1,678,971,859.60x = 2,027,669,356,838,278,400
  5. Step 5: Solve for x
    x = 2,027,669,356,838,278,400/1,678,971,859.60
  6. Step 6: Final answer
    x = 1,207,685,134.95

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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.