Home / 13,146,737.40-19,720,106.10-12,957,780.60

Finding the Fourth Proportional to 13,146,737.40, 19,720,106.10 and 12,957,780.60

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Solution

The fourth proportional to 13,146,737.40, 19,720,106.10 and 12,957,780.60 is: 19,436,670.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,146,737.40 : 19,720,106.10 = 12,957,780.60 : x
  2. Step 2: Convert to fraction form
    13,146,737.40/19,720,106.10 = 12,957,780.60/x
  3. Step 3: Cross multiply
    13,146,737.40x = 19,720,106.10 × 12,957,780.60
  4. Step 4: Simplify right side
    13,146,737.40x = 255,528,808,252,521.69
  5. Step 5: Solve for x
    x = 255,528,808,252,521.69/13,146,737.40
  6. Step 6: Final answer
    x = 19,436,670.90

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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.