Home / 38,721,599.78-53,433,779.22-21,314,545.07

Finding the Fourth Proportional to 38,721,599.78, 53,433,779.22 and 21,314,545.07

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Solution

The fourth proportional to 38,721,599.78, 53,433,779.22 and 21,314,545.07 is: 29,412,955.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,721,599.78 : 53,433,779.22 = 21,314,545.07 : x
  2. Step 2: Convert to fraction form
    38,721,599.78/53,433,779.22 = 21,314,545.07/x
  3. Step 3: Cross multiply
    38,721,599.78x = 53,433,779.22 × 21,314,545.07
  4. Step 4: Simplify right side
    38,721,599.78x = 1,138,916,695,177,950.50
  5. Step 5: Solve for x
    x = 1,138,916,695,177,950.50/38,721,599.78
  6. Step 6: Final answer
    x = 29,412,955.61

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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.