Home / 84,580,288.40-126,870,432.60-83,446,547.60

Finding the Fourth Proportional to 84,580,288.40, 126,870,432.60 and 83,446,547.60

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Solution

The fourth proportional to 84,580,288.40, 126,870,432.60 and 83,446,547.60 is: 125,169,821.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,580,288.40 : 126,870,432.60 = 83,446,547.60 : x
  2. Step 2: Convert to fraction form
    84,580,288.40/126,870,432.60 = 83,446,547.60/x
  3. Step 3: Cross multiply
    84,580,288.40x = 126,870,432.60 × 83,446,547.60
  4. Step 4: Simplify right side
    84,580,288.40x = 10,586,899,592,988,490
  5. Step 5: Solve for x
    x = 10,586,899,592,988,490/84,580,288.40
  6. Step 6: Final answer
    x = 125,169,821.40

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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.