Home / 290,059,392.32-435,101,095.10-85,587,467.57

Finding the Fourth Proportional to 290,059,392.32, 435,101,095.10 and 85,587,467.57

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Solution

The fourth proportional to 290,059,392.32, 435,101,095.10 and 85,587,467.57 is: 128,384,744.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,059,392.32 : 435,101,095.10 = 85,587,467.57 : x
  2. Step 2: Convert to fraction form
    290,059,392.32/435,101,095.10 = 85,587,467.57/x
  3. Step 3: Cross multiply
    290,059,392.32x = 435,101,095.10 × 85,587,467.57
  4. Step 4: Simplify right side
    290,059,392.32x = 37,239,200,864,367,232
  5. Step 5: Solve for x
    x = 37,239,200,864,367,232/290,059,392.32
  6. Step 6: Final answer
    x = 128,384,744.13

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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.