Home / 72,748,992.30-100,378,622.70-41,803,182.87

Finding the Fourth Proportional to 72,748,992.30, 100,378,622.70 and 41,803,182.87

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Solution

The fourth proportional to 72,748,992.30, 100,378,622.70 and 41,803,182.87 is: 57,679,780.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,748,992.30 : 100,378,622.70 = 41,803,182.87 : x
  2. Step 2: Convert to fraction form
    72,748,992.30/100,378,622.70 = 41,803,182.87/x
  3. Step 3: Cross multiply
    72,748,992.30x = 100,378,622.70 × 41,803,182.87
  4. Step 4: Simplify right side
    72,748,992.30x = 4,196,145,920,966,833
  5. Step 5: Solve for x
    x = 4,196,145,920,966,833/72,748,992.30
  6. Step 6: Final answer
    x = 57,679,780.69

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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.