Home / 28,371,878.09-42,563,794.98-9,201,140.36

Finding the Fourth Proportional to 28,371,878.09, 42,563,794.98 and 9,201,140.36

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Solution

The fourth proportional to 28,371,878.09, 42,563,794.98 and 9,201,140.36 is: 13,803,649.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,371,878.09 : 42,563,794.98 = 9,201,140.36 : x
  2. Step 2: Convert to fraction form
    28,371,878.09/42,563,794.98 = 9,201,140.36/x
  3. Step 3: Cross multiply
    28,371,878.09x = 42,563,794.98 × 9,201,140.36
  4. Step 4: Simplify right side
    28,371,878.09x = 391,635,451,865,243.31
  5. Step 5: Solve for x
    x = 391,635,451,865,243.31/28,371,878.09
  6. Step 6: Final answer
    x = 13,803,649.18

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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.