Home / 208,492,379.32-287,715,656.64-115,670,894.28

Finding the Fourth Proportional to 208,492,379.32, 287,715,656.64 and 115,670,894.28

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Solution

The fourth proportional to 208,492,379.32, 287,715,656.64 and 115,670,894.28 is: 159,623,711.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,492,379.32 : 287,715,656.64 = 115,670,894.28 : x
  2. Step 2: Convert to fraction form
    208,492,379.32/287,715,656.64 = 115,670,894.28/x
  3. Step 3: Cross multiply
    208,492,379.32x = 287,715,656.64 × 115,670,894.28
  4. Step 4: Simplify right side
    208,492,379.32x = 33,280,327,301,906,220
  5. Step 5: Solve for x
    x = 33,280,327,301,906,220/208,492,379.32
  6. Step 6: Final answer
    x = 159,623,711.00

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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.