Home / 289,023,284.03-398,852,516.82-156,864,280.55

Finding the Fourth Proportional to 289,023,284.03, 398,852,516.82 and 156,864,280.55

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Solution

The fourth proportional to 289,023,284.03, 398,852,516.82 and 156,864,280.55 is: 216,472,916.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,023,284.03 : 398,852,516.82 = 156,864,280.55 : x
  2. Step 2: Convert to fraction form
    289,023,284.03/398,852,516.82 = 156,864,280.55/x
  3. Step 3: Cross multiply
    289,023,284.03x = 398,852,516.82 × 156,864,280.55
  4. Step 4: Simplify right side
    289,023,284.03x = 62,565,713,094,531,808
  5. Step 5: Solve for x
    x = 62,565,713,094,531,808/289,023,284.03
  6. Step 6: Final answer
    x = 216,472,916.03

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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.