Home / 72,592,139.12-100,155,661.43-43,199,908.88

Finding the Fourth Proportional to 72,592,139.12, 100,155,661.43 and 43,199,908.88

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Solution

The fourth proportional to 72,592,139.12, 100,155,661.43 and 43,199,908.88 is: 59,603,085.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,592,139.12 : 100,155,661.43 = 43,199,908.88 : x
  2. Step 2: Convert to fraction form
    72,592,139.12/100,155,661.43 = 43,199,908.88/x
  3. Step 3: Cross multiply
    72,592,139.12x = 100,155,661.43 × 43,199,908.88
  4. Step 4: Simplify right side
    72,592,139.12x = 4,326,715,446,875,352.50
  5. Step 5: Solve for x
    x = 4,326,715,446,875,352.50/72,592,139.12
  6. Step 6: Final answer
    x = 59,603,085.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.