Home / 15,685,868.95-21,642,952.52-9,490,761.60

Finding the Fourth Proportional to 15,685,868.95, 21,642,952.52 and 9,490,761.60

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Solution

The fourth proportional to 15,685,868.95, 21,642,952.52 and 9,490,761.60 is: 13,095,105.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,685,868.95 : 21,642,952.52 = 9,490,761.60 : x
  2. Step 2: Convert to fraction form
    15,685,868.95/21,642,952.52 = 9,490,761.60/x
  3. Step 3: Cross multiply
    15,685,868.95x = 21,642,952.52 × 9,490,761.60
  4. Step 4: Simplify right side
    15,685,868.95x = 205,408,102,630,005.06
  5. Step 5: Solve for x
    x = 205,408,102,630,005.06/15,685,868.95
  6. Step 6: Final answer
    x = 13,095,105.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.