Home / 520,216,929.06-780,286,152.12-165,676,883.46

Finding the Fourth Proportional to 520,216,929.06, 780,286,152.12 and 165,676,883.46

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Solution

The fourth proportional to 520,216,929.06, 780,286,152.12 and 165,676,883.46 is: 248,502,827.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,216,929.06 : 780,286,152.12 = 165,676,883.46 : x
  2. Step 2: Convert to fraction form
    520,216,929.06/780,286,152.12 = 165,676,883.46/x
  3. Step 3: Cross multiply
    520,216,929.06x = 780,286,152.12 × 165,676,883.46
  4. Step 4: Simplify right side
    520,216,929.06x = 129,275,377,890,237,072
  5. Step 5: Solve for x
    x = 129,275,377,890,237,072/520,216,929.06
  6. Step 6: Final answer
    x = 248,502,827.70

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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.