Home / 28,328,035.40-42,492,053.10-21,525,590.60

Finding the Fourth Proportional to 28,328,035.40, 42,492,053.10 and 21,525,590.60

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Solution

The fourth proportional to 28,328,035.40, 42,492,053.10 and 21,525,590.60 is: 32,288,385.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,328,035.40 : 42,492,053.10 = 21,525,590.60 : x
  2. Step 2: Convert to fraction form
    28,328,035.40/42,492,053.10 = 21,525,590.60/x
  3. Step 3: Cross multiply
    28,328,035.40x = 42,492,053.10 × 21,525,590.60
  4. Step 4: Simplify right side
    28,328,035.40x = 914,666,538,784,061
  5. Step 5: Solve for x
    x = 914,666,538,784,061/28,328,035.40
  6. Step 6: Final answer
    x = 32,288,385.90

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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.