Home / 113,341,036.90-170,011,555.35-90,666,220.90

Finding the Fourth Proportional to 113,341,036.90, 170,011,555.35 and 90,666,220.90

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Solution

The fourth proportional to 113,341,036.90, 170,011,555.35 and 90,666,220.90 is: 135,999,331.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,341,036.90 : 170,011,555.35 = 90,666,220.90 : x
  2. Step 2: Convert to fraction form
    113,341,036.90/170,011,555.35 = 90,666,220.90/x
  3. Step 3: Cross multiply
    113,341,036.90x = 170,011,555.35 × 90,666,220.90
  4. Step 4: Simplify right side
    113,341,036.90x = 15,414,305,232,915,678
  5. Step 5: Solve for x
    x = 15,414,305,232,915,678/113,341,036.90
  6. Step 6: Final answer
    x = 135,999,331.35

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Double scale
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Similar ratio
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1.5x scale

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.