Home / 15,509,727.65-21,389,490.78-9,709,038.20

Finding the Fourth Proportional to 15,509,727.65, 21,389,490.78 and 9,709,038.20

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Solution

The fourth proportional to 15,509,727.65, 21,389,490.78 and 9,709,038.20 is: 13,389,750.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,509,727.65 : 21,389,490.78 = 9,709,038.20 : x
  2. Step 2: Convert to fraction form
    15,509,727.65/21,389,490.78 = 9,709,038.20/x
  3. Step 3: Cross multiply
    15,509,727.65x = 21,389,490.78 × 9,709,038.20
  4. Step 4: Simplify right side
    15,509,727.65x = 207,671,383,061,567.78
  5. Step 5: Solve for x
    x = 207,671,383,061,567.78/15,509,727.65
  6. Step 6: Final answer
    x = 13,389,750.47

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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.