Home / 1,146,146,117.84-1,581,672,134.66-644,357,138.22

Finding the Fourth Proportional to 1,146,146,117.84, 1,581,672,134.66 and 644,357,138.22

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Solution

The fourth proportional to 1,146,146,117.84, 1,581,672,134.66 and 644,357,138.22 is: 889,207,505.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,146,146,117.84 : 1,581,672,134.66 = 644,357,138.22 : x
  2. Step 2: Convert to fraction form
    1,146,146,117.84/1,581,672,134.66 = 644,357,138.22/x
  3. Step 3: Cross multiply
    1,146,146,117.84x = 1,581,672,134.66 × 644,357,138.22
  4. Step 4: Simplify right side
    1,146,146,117.84x = 1,019,161,730,291,836,160
  5. Step 5: Solve for x
    x = 1,019,161,730,291,836,160/1,146,146,117.84
  6. Step 6: Final answer
    x = 889,207,505.42

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Double scale
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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.