Home / 21,492,672.70-32,239,009.05-18,693,312.70

Finding the Fourth Proportional to 21,492,672.70, 32,239,009.05 and 18,693,312.70

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Solution

The fourth proportional to 21,492,672.70, 32,239,009.05 and 18,693,312.70 is: 28,039,969.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,492,672.70 : 32,239,009.05 = 18,693,312.70 : x
  2. Step 2: Convert to fraction form
    21,492,672.70/32,239,009.05 = 18,693,312.70/x
  3. Step 3: Cross multiply
    21,492,672.70x = 32,239,009.05 × 18,693,312.70
  4. Step 4: Simplify right side
    21,492,672.70x = 602,653,877,309,779.88
  5. Step 5: Solve for x
    x = 602,653,877,309,779.88/21,492,672.70
  6. Step 6: Final answer
    x = 28,039,969.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.