Home / 31,345,679.20-47,018,518.80-8,316,569.20

Finding the Fourth Proportional to 31,345,679.20, 47,018,518.80 and 8,316,569.20

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Solution

The fourth proportional to 31,345,679.20, 47,018,518.80 and 8,316,569.20 is: 12,474,853.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,345,679.20 : 47,018,518.80 = 8,316,569.20 : x
  2. Step 2: Convert to fraction form
    31,345,679.20/47,018,518.80 = 8,316,569.20/x
  3. Step 3: Cross multiply
    31,345,679.20x = 47,018,518.80 × 8,316,569.20
  4. Step 4: Simplify right side
    31,345,679.20x = 391,032,765,281,700.94
  5. Step 5: Solve for x
    x = 391,032,765,281,700.94/31,345,679.20
  6. Step 6: Final answer
    x = 12,474,853.80

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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.