Home / 288,585,483.32-398,237,295.48-156,423,641.78

Finding the Fourth Proportional to 288,585,483.32, 398,237,295.48 and 156,423,641.78

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Solution

The fourth proportional to 288,585,483.32, 398,237,295.48 and 156,423,641.78 is: 215,858,841.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,585,483.32 : 398,237,295.48 = 156,423,641.78 : x
  2. Step 2: Convert to fraction form
    288,585,483.32/398,237,295.48 = 156,423,641.78/x
  3. Step 3: Cross multiply
    288,585,483.32x = 398,237,295.48 × 156,423,641.78
  4. Step 4: Simplify right side
    288,585,483.32x = 62,293,728,051,599,536
  5. Step 5: Solve for x
    x = 62,293,728,051,599,536/288,585,483.32
  6. Step 6: Final answer
    x = 215,858,841.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.