Home / 15,779,384.40-21,775,338.75-8,810,169

Finding the Fourth Proportional to 15,779,384.40, 21,775,338.75 and 8,810,169

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Solution

The fourth proportional to 15,779,384.40, 21,775,338.75 and 8,810,169 is: 12,157,915.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,779,384.40 : 21,775,338.75 = 8,810,169 : x
  2. Step 2: Convert to fraction form
    15,779,384.40/21,775,338.75 = 8,810,169/x
  3. Step 3: Cross multiply
    15,779,384.40x = 21,775,338.75 × 8,810,169
  4. Step 4: Simplify right side
    15,779,384.40x = 191,844,414,419,748.75
  5. Step 5: Solve for x
    x = 191,844,414,419,748.75/15,779,384.40
  6. Step 6: Final answer
    x = 12,157,915.01

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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.