Home / 280,925,631.36-387,692,432.64-157,158,927.36

Finding the Fourth Proportional to 280,925,631.36, 387,692,432.64 and 157,158,927.36

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Solution

The fourth proportional to 280,925,631.36, 387,692,432.64 and 157,158,927.36 is: 216,887,745.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,925,631.36 : 387,692,432.64 = 157,158,927.36 : x
  2. Step 2: Convert to fraction form
    280,925,631.36/387,692,432.64 = 157,158,927.36/x
  3. Step 3: Cross multiply
    280,925,631.36x = 387,692,432.64 × 157,158,927.36
  4. Step 4: Simplify right side
    280,925,631.36x = 60,929,326,859,291,456
  5. Step 5: Solve for x
    x = 60,929,326,859,291,456/280,925,631.36
  6. Step 6: Final answer
    x = 216,887,745.57

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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.