Home / 84,006,479.70-126,009,719.55-69,657,572.70

Finding the Fourth Proportional to 84,006,479.70, 126,009,719.55 and 69,657,572.70

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Solution

The fourth proportional to 84,006,479.70, 126,009,719.55 and 69,657,572.70 is: 104,486,359.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,006,479.70 : 126,009,719.55 = 69,657,572.70 : x
  2. Step 2: Convert to fraction form
    84,006,479.70/126,009,719.55 = 69,657,572.70/x
  3. Step 3: Cross multiply
    84,006,479.70x = 126,009,719.55 × 69,657,572.70
  4. Step 4: Simplify right side
    84,006,479.70x = 8,777,531,200,460,736
  5. Step 5: Solve for x
    x = 8,777,531,200,460,736/84,006,479.70
  6. Step 6: Final answer
    x = 104,486,359.05

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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.