Home / 103,518,000.40-155,277,000.60-31,705,085.20

Finding the Fourth Proportional to 103,518,000.40, 155,277,000.60 and 31,705,085.20

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Solution

The fourth proportional to 103,518,000.40, 155,277,000.60 and 31,705,085.20 is: 47,557,627.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,518,000.40 : 155,277,000.60 = 31,705,085.20 : x
  2. Step 2: Convert to fraction form
    103,518,000.40/155,277,000.60 = 31,705,085.20/x
  3. Step 3: Cross multiply
    103,518,000.40x = 155,277,000.60 × 31,705,085.20
  4. Step 4: Simplify right side
    103,518,000.40x = 4,923,070,533,623,451
  5. Step 5: Solve for x
    x = 4,923,070,533,623,451/103,518,000.40
  6. Step 6: Final answer
    x = 47,557,627.80

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1.5x scale

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.