Home / 287,780,217.40-403,799,297-287,780,217.40

Finding the Fourth Proportional to 287,780,217.40, 403,799,297 and 287,780,217.40

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Solution

The fourth proportional to 287,780,217.40, 403,799,297 and 287,780,217.40 is: 403,799,297

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,780,217.40 : 403,799,297 = 287,780,217.40 : x
  2. Step 2: Convert to fraction form
    287,780,217.40/403,799,297 = 287,780,217.40/x
  3. Step 3: Cross multiply
    287,780,217.40x = 403,799,297 × 287,780,217.40
  4. Step 4: Simplify right side
    287,780,217.40x = 116,205,449,476,627,152
  5. Step 5: Solve for x
    x = 116,205,449,476,627,152/287,780,217.40
  6. Step 6: Final answer
    x = 403,799,297

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.