Home / 97,806,009.60-146,709,014.40-90,415,699.20

Finding the Fourth Proportional to 97,806,009.60, 146,709,014.40 and 90,415,699.20

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Solution

The fourth proportional to 97,806,009.60, 146,709,014.40 and 90,415,699.20 is: 135,623,548.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,806,009.60 : 146,709,014.40 = 90,415,699.20 : x
  2. Step 2: Convert to fraction form
    97,806,009.60/146,709,014.40 = 90,415,699.20/x
  3. Step 3: Cross multiply
    97,806,009.60x = 146,709,014.40 × 90,415,699.20
  4. Step 4: Simplify right side
    97,806,009.60x = 13,264,798,115,918,870
  5. Step 5: Solve for x
    x = 13,264,798,115,918,870/97,806,009.60
  6. Step 6: Final answer
    x = 135,623,548.80

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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.