Home / 38,928,280.86-53,718,719.40-21,523,260.06

Finding the Fourth Proportional to 38,928,280.86, 53,718,719.40 and 21,523,260.06

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Solution

The fourth proportional to 38,928,280.86, 53,718,719.40 and 21,523,260.06 is: 29,700,822.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,928,280.86 : 53,718,719.40 = 21,523,260.06 : x
  2. Step 2: Convert to fraction form
    38,928,280.86/53,718,719.40 = 21,523,260.06/x
  3. Step 3: Cross multiply
    38,928,280.86x = 53,718,719.40 × 21,523,260.06
  4. Step 4: Simplify right side
    38,928,280.86x = 1,156,201,967,736,367
  5. Step 5: Solve for x
    x = 1,156,201,967,736,367/38,928,280.86
  6. Step 6: Final answer
    x = 29,700,822.70

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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.