Home / 90,503,020.30-135,754,530.45-83,417,140.30

Finding the Fourth Proportional to 90,503,020.30, 135,754,530.45 and 83,417,140.30

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Solution

The fourth proportional to 90,503,020.30, 135,754,530.45 and 83,417,140.30 is: 125,125,710.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,503,020.30 : 135,754,530.45 = 83,417,140.30 : x
  2. Step 2: Convert to fraction form
    90,503,020.30/135,754,530.45 = 83,417,140.30/x
  3. Step 3: Cross multiply
    90,503,020.30x = 135,754,530.45 × 83,417,140.30
  4. Step 4: Simplify right side
    90,503,020.30x = 11,324,254,712,908,270
  5. Step 5: Solve for x
    x = 11,324,254,712,908,270/90,503,020.30
  6. Step 6: Final answer
    x = 125,125,710.45

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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.