Home / 19,869,042.70-29,803,564.05-18,672,316.30

Finding the Fourth Proportional to 19,869,042.70, 29,803,564.05 and 18,672,316.30

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Solution

The fourth proportional to 19,869,042.70, 29,803,564.05 and 18,672,316.30 is: 28,008,474.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,869,042.70 : 29,803,564.05 = 18,672,316.30 : x
  2. Step 2: Convert to fraction form
    19,869,042.70/29,803,564.05 = 18,672,316.30/x
  3. Step 3: Cross multiply
    19,869,042.70x = 29,803,564.05 × 18,672,316.30
  4. Step 4: Simplify right side
    19,869,042.70x = 556,501,574,808,909.06
  5. Step 5: Solve for x
    x = 556,501,574,808,909.06/19,869,042.70
  6. Step 6: Final answer
    x = 28,008,474.45

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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.