Home / 28,256,871.60-42,385,307.40-18,683,060.40

Finding the Fourth Proportional to 28,256,871.60, 42,385,307.40 and 18,683,060.40

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Solution

The fourth proportional to 28,256,871.60, 42,385,307.40 and 18,683,060.40 is: 28,024,590.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,256,871.60 : 42,385,307.40 = 18,683,060.40 : x
  2. Step 2: Convert to fraction form
    28,256,871.60/42,385,307.40 = 18,683,060.40/x
  3. Step 3: Cross multiply
    28,256,871.60x = 42,385,307.40 × 18,683,060.40
  4. Step 4: Simplify right side
    28,256,871.60x = 791,887,258,226,766.88
  5. Step 5: Solve for x
    x = 791,887,258,226,766.88/28,256,871.60
  6. Step 6: Final answer
    x = 28,024,590.60

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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.