Home / 15,585,980.39-21,509,317.20-8,710,462.25

Finding the Fourth Proportional to 15,585,980.39, 21,509,317.20 and 8,710,462.25

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Solution

The fourth proportional to 15,585,980.39, 21,509,317.20 and 8,710,462.25 is: 12,020,809.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,585,980.39 : 21,509,317.20 = 8,710,462.25 : x
  2. Step 2: Convert to fraction form
    15,585,980.39/21,509,317.20 = 8,710,462.25/x
  3. Step 3: Cross multiply
    15,585,980.39x = 21,509,317.20 × 8,710,462.25
  4. Step 4: Simplify right side
    15,585,980.39x = 187,356,095,493,875.69
  5. Step 5: Solve for x
    x = 187,356,095,493,875.69/15,585,980.39
  6. Step 6: Final answer
    x = 12,020,809.14

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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.