Home / 65,972,165.80-98,895,263.10-51,390,999.40

Finding the Fourth Proportional to 65,972,165.80, 98,895,263.10 and 51,390,999.40

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Solution

The fourth proportional to 65,972,165.80, 98,895,263.10 and 51,390,999.40 is: 77,037,434.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,972,165.80 : 98,895,263.10 = 51,390,999.40 : x
  2. Step 2: Convert to fraction form
    65,972,165.80/98,895,263.10 = 51,390,999.40/x
  3. Step 3: Cross multiply
    65,972,165.80x = 98,895,263.10 × 51,390,999.40
  4. Step 4: Simplify right side
    65,972,165.80x = 5,082,326,406,634,942
  5. Step 5: Solve for x
    x = 5,082,326,406,634,942/65,972,165.80
  6. Step 6: Final answer
    x = 77,037,434.58

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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.