Home / 28,470,472.68-42,706,890-8,275,714.68

Finding the Fourth Proportional to 28,470,472.68, 42,706,890 and 8,275,714.68

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Solution

The fourth proportional to 28,470,472.68, 42,706,890 and 8,275,714.68 is: 12,413,915.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,470,472.68 : 42,706,890 = 8,275,714.68 : x
  2. Step 2: Convert to fraction form
    28,470,472.68/42,706,890 = 8,275,714.68/x
  3. Step 3: Cross multiply
    28,470,472.68x = 42,706,890 × 8,275,714.68
  4. Step 4: Simplify right side
    28,470,472.68x = 353,430,036,510,145.19
  5. Step 5: Solve for x
    x = 353,430,036,510,145.19/28,470,472.68
  6. Step 6: Final answer
    x = 12,413,915.30

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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.