Home / 28,588,810.60-42,879,068.70-8,391,946.60

Finding the Fourth Proportional to 28,588,810.60, 42,879,068.70 and 8,391,946.60

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Solution

The fourth proportional to 28,588,810.60, 42,879,068.70 and 8,391,946.60 is: 12,586,702.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,588,810.60 : 42,879,068.70 = 8,391,946.60 : x
  2. Step 2: Convert to fraction form
    28,588,810.60/42,879,068.70 = 8,391,946.60/x
  3. Step 3: Cross multiply
    28,588,810.60x = 42,879,068.70 × 8,391,946.60
  4. Step 4: Simplify right side
    28,588,810.60x = 359,838,854,788,131.44
  5. Step 5: Solve for x
    x = 359,838,854,788,131.44/28,588,810.60
  6. Step 6: Final answer
    x = 12,586,702.53

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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.