Home / 97,805,415.60-146,708,123.40-90,415,105.20

Finding the Fourth Proportional to 97,805,415.60, 146,708,123.40 and 90,415,105.20

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Solution

The fourth proportional to 97,805,415.60, 146,708,123.40 and 90,415,105.20 is: 135,622,657.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,805,415.60 : 146,708,123.40 = 90,415,105.20 : x
  2. Step 2: Convert to fraction form
    97,805,415.60/146,708,123.40 = 90,415,105.20/x
  3. Step 3: Cross multiply
    97,805,415.60x = 146,708,123.40 × 90,415,105.20
  4. Step 4: Simplify right side
    97,805,415.60x = 13,264,630,410,905,582
  5. Step 5: Solve for x
    x = 13,264,630,410,905,582/97,805,415.60
  6. Step 6: Final answer
    x = 135,622,657.80

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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.