Home / 19,979,516.89-29,957,139.51-7,834,430.35

Finding the Fourth Proportional to 19,979,516.89, 29,957,139.51 and 7,834,430.35

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Solution

The fourth proportional to 19,979,516.89, 29,957,139.51 and 7,834,430.35 is: 11,746,886.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,979,516.89 : 29,957,139.51 = 7,834,430.35 : x
  2. Step 2: Convert to fraction form
    19,979,516.89/29,957,139.51 = 7,834,430.35/x
  3. Step 3: Cross multiply
    19,979,516.89x = 29,957,139.51 × 7,834,430.35
  4. Step 4: Simplify right side
    19,979,516.89x = 234,697,122,976,328.12
  5. Step 5: Solve for x
    x = 234,697,122,976,328.12/19,979,516.89
  6. Step 6: Final answer
    x = 11,746,886.79

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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.