Home / 287,124,830.80-430,687,246.20-114,628,267.60

Finding the Fourth Proportional to 287,124,830.80, 430,687,246.20 and 114,628,267.60

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Solution

The fourth proportional to 287,124,830.80, 430,687,246.20 and 114,628,267.60 is: 171,942,401.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,124,830.80 : 430,687,246.20 = 114,628,267.60 : x
  2. Step 2: Convert to fraction form
    287,124,830.80/430,687,246.20 = 114,628,267.60/x
  3. Step 3: Cross multiply
    287,124,830.80x = 430,687,246.20 × 114,628,267.60
  4. Step 4: Simplify right side
    287,124,830.80x = 49,368,932,909,320,680
  5. Step 5: Solve for x
    x = 49,368,932,909,320,680/287,124,830.80
  6. Step 6: Final answer
    x = 171,942,401.40

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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.