Home / 28,101,328.96-38,779,328.46-15,877,923.52

Finding the Fourth Proportional to 28,101,328.96, 38,779,328.46 and 15,877,923.52

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Solution

The fourth proportional to 28,101,328.96, 38,779,328.46 and 15,877,923.52 is: 21,911,248.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,101,328.96 : 38,779,328.46 = 15,877,923.52 : x
  2. Step 2: Convert to fraction form
    28,101,328.96/38,779,328.46 = 15,877,923.52/x
  3. Step 3: Cross multiply
    28,101,328.96x = 38,779,328.46 × 15,877,923.52
  4. Step 4: Simplify right side
    28,101,328.96x = 615,735,211,444,839.38
  5. Step 5: Solve for x
    x = 615,735,211,444,839.38/28,101,328.96
  6. Step 6: Final answer
    x = 21,911,248.84

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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.