Home / 636,650,852.85-878,569,177.80-358,191,712.08

Finding the Fourth Proportional to 636,650,852.85, 878,569,177.80 and 358,191,712.08

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Solution

The fourth proportional to 636,650,852.85, 878,569,177.80 and 358,191,712.08 is: 494,299,499.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,650,852.85 : 878,569,177.80 = 358,191,712.08 : x
  2. Step 2: Convert to fraction form
    636,650,852.85/878,569,177.80 = 358,191,712.08/x
  3. Step 3: Cross multiply
    636,650,852.85x = 878,569,177.80 × 358,191,712.08
  4. Step 4: Simplify right side
    636,650,852.85x = 314,696,197,976,899,904
  5. Step 5: Solve for x
    x = 314,696,197,976,899,904/636,650,852.85
  6. Step 6: Final answer
    x = 494,299,499.59

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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.