Home / 289,039,601.52-398,873,639.52-156,880,590.60

Finding the Fourth Proportional to 289,039,601.52, 398,873,639.52 and 156,880,590.60

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Solution

The fourth proportional to 289,039,601.52, 398,873,639.52 and 156,880,590.60 is: 216,494,666.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,039,601.52 : 398,873,639.52 = 156,880,590.60 : x
  2. Step 2: Convert to fraction form
    289,039,601.52/398,873,639.52 = 156,880,590.60/x
  3. Step 3: Cross multiply
    289,039,601.52x = 398,873,639.52 × 156,880,590.60
  4. Step 4: Simplify right side
    289,039,601.52x = 62,575,532,142,669,096
  5. Step 5: Solve for x
    x = 62,575,532,142,669,096/289,039,601.52
  6. Step 6: Final answer
    x = 216,494,666.52

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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.