Home / 389,884,915.60-584,827,373.40-328,662,912.40

Finding the Fourth Proportional to 389,884,915.60, 584,827,373.40 and 328,662,912.40

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Solution

The fourth proportional to 389,884,915.60, 584,827,373.40 and 328,662,912.40 is: 492,994,368.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,884,915.60 : 584,827,373.40 = 328,662,912.40 : x
  2. Step 2: Convert to fraction form
    389,884,915.60/584,827,373.40 = 328,662,912.40/x
  3. Step 3: Cross multiply
    389,884,915.60x = 584,827,373.40 × 328,662,912.40
  4. Step 4: Simplify right side
    389,884,915.60x = 192,211,067,792,886,272
  5. Step 5: Solve for x
    x = 192,211,067,792,886,272/389,884,915.60
  6. Step 6: Final answer
    x = 492,994,368.60

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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.