Home / 25,980,929.70-38,971,394.55-19,934,312.10

Finding the Fourth Proportional to 25,980,929.70, 38,971,394.55 and 19,934,312.10

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Solution

The fourth proportional to 25,980,929.70, 38,971,394.55 and 19,934,312.10 is: 29,901,468.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,980,929.70 : 38,971,394.55 = 19,934,312.10 : x
  2. Step 2: Convert to fraction form
    25,980,929.70/38,971,394.55 = 19,934,312.10/x
  3. Step 3: Cross multiply
    25,980,929.70x = 38,971,394.55 × 19,934,312.10
  4. Step 4: Simplify right side
    25,980,929.70x = 776,867,941,931,939
  5. Step 5: Solve for x
    x = 776,867,941,931,939/25,980,929.70
  6. Step 6: Final answer
    x = 29,901,468.15

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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.