Home / 38,779,521.45-53,515,726.56-21,376,157.37

Finding the Fourth Proportional to 38,779,521.45, 53,515,726.56 and 21,376,157.37

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Solution

The fourth proportional to 38,779,521.45, 53,515,726.56 and 21,376,157.37 is: 29,499,089.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,779,521.45 : 53,515,726.56 = 21,376,157.37 : x
  2. Step 2: Convert to fraction form
    38,779,521.45/53,515,726.56 = 21,376,157.37/x
  3. Step 3: Cross multiply
    38,779,521.45x = 53,515,726.56 × 21,376,157.37
  4. Step 4: Simplify right side
    38,779,521.45x = 1,143,960,592,716,448.75
  5. Step 5: Solve for x
    x = 1,143,960,592,716,448.75/38,779,521.45
  6. Step 6: Final answer
    x = 29,499,089.98

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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.