Home / 31,340,045.60-47,010,068.40-20,590,503.20

Finding the Fourth Proportional to 31,340,045.60, 47,010,068.40 and 20,590,503.20

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Solution

The fourth proportional to 31,340,045.60, 47,010,068.40 and 20,590,503.20 is: 30,885,754.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,340,045.60 : 47,010,068.40 = 20,590,503.20 : x
  2. Step 2: Convert to fraction form
    31,340,045.60/47,010,068.40 = 20,590,503.20/x
  3. Step 3: Cross multiply
    31,340,045.60x = 47,010,068.40 × 20,590,503.20
  4. Step 4: Simplify right side
    31,340,045.60x = 967,960,963,822,418.88
  5. Step 5: Solve for x
    x = 967,960,963,822,418.88/31,340,045.60
  6. Step 6: Final answer
    x = 30,885,754.80

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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.