Home / 247,124,890.40-370,620,980.40-103,488,000.80

Finding the Fourth Proportional to 247,124,890.40, 370,620,980.40 and 103,488,000.80

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Solution

The fourth proportional to 247,124,890.40, 370,620,980.40 and 103,488,000.80 is: 155,204,213.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,124,890.40 : 370,620,980.40 = 103,488,000.80 : x
  2. Step 2: Convert to fraction form
    247,124,890.40/370,620,980.40 = 103,488,000.80/x
  3. Step 3: Cross multiply
    247,124,890.40x = 370,620,980.40 × 103,488,000.80
  4. Step 4: Simplify right side
    247,124,890.40x = 38,354,824,316,131,984
  5. Step 5: Solve for x
    x = 38,354,824,316,131,984/247,124,890.40
  6. Step 6: Final answer
    x = 155,204,213.76

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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.