Home / 38,779,507.95-53,515,707.95-21,376,143.80

Finding the Fourth Proportional to 38,779,507.95, 53,515,707.95 and 21,376,143.80

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Solution

The fourth proportional to 38,779,507.95, 53,515,707.95 and 21,376,143.80 is: 29,499,071.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,779,507.95 : 53,515,707.95 = 21,376,143.80 : x
  2. Step 2: Convert to fraction form
    38,779,507.95/53,515,707.95 = 21,376,143.80/x
  3. Step 3: Cross multiply
    38,779,507.95x = 53,515,707.95 × 21,376,143.80
  4. Step 4: Simplify right side
    38,779,507.95x = 1,143,959,468,885,232.75
  5. Step 5: Solve for x
    x = 1,143,959,468,885,232.75/38,779,507.95
  6. Step 6: Final answer
    x = 29,499,071.27

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1.5x scale

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.