Home / 208,492,380.32-287,715,658.02-115,670,895.28

Finding the Fourth Proportional to 208,492,380.32, 287,715,658.02 and 115,670,895.28

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Solution

The fourth proportional to 208,492,380.32, 287,715,658.02 and 115,670,895.28 is: 159,623,712.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,492,380.32 : 287,715,658.02 = 115,670,895.28 : x
  2. Step 2: Convert to fraction form
    208,492,380.32/287,715,658.02 = 115,670,895.28/x
  3. Step 3: Cross multiply
    208,492,380.32x = 287,715,658.02 × 115,670,895.28
  4. Step 4: Simplify right side
    208,492,380.32x = 33,280,327,749,247,712
  5. Step 5: Solve for x
    x = 33,280,327,749,247,712/208,492,380.32
  6. Step 6: Final answer
    x = 159,623,712.38

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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.