Home / 260,146,400.32-390,219,184.68-143,556,117.76

Finding the Fourth Proportional to 260,146,400.32, 390,219,184.68 and 143,556,117.76

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Solution

The fourth proportional to 260,146,400.32, 390,219,184.68 and 143,556,117.76 is: 215,333,947.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,146,400.32 : 390,219,184.68 = 143,556,117.76 : x
  2. Step 2: Convert to fraction form
    260,146,400.32/390,219,184.68 = 143,556,117.76/x
  3. Step 3: Cross multiply
    260,146,400.32x = 390,219,184.68 × 143,556,117.76
  4. Step 4: Simplify right side
    260,146,400.32x = 56,018,351,228,133,264
  5. Step 5: Solve for x
    x = 56,018,351,228,133,264/260,146,400.32
  6. Step 6: Final answer
    x = 215,333,947.19

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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.