Home / 15,509,722.15-21,389,483.19-9,709,032.70

Finding the Fourth Proportional to 15,509,722.15, 21,389,483.19 and 9,709,032.70

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Solution

The fourth proportional to 15,509,722.15, 21,389,483.19 and 9,709,032.70 is: 13,389,742.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,509,722.15 : 21,389,483.19 = 9,709,032.70 : x
  2. Step 2: Convert to fraction form
    15,509,722.15/21,389,483.19 = 9,709,032.70/x
  3. Step 3: Cross multiply
    15,509,722.15x = 21,389,483.19 × 9,709,032.70
  4. Step 4: Simplify right side
    15,509,722.15x = 207,671,191,727,810.31
  5. Step 5: Solve for x
    x = 207,671,191,727,810.31/15,509,722.15
  6. Step 6: Final answer
    x = 13,389,742.88

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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.