Home / 213,884,870.40-320,827,305.60-52,326,806.40

Finding the Fourth Proportional to 213,884,870.40, 320,827,305.60 and 52,326,806.40

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Solution

The fourth proportional to 213,884,870.40, 320,827,305.60 and 52,326,806.40 is: 78,490,209.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,884,870.40 : 320,827,305.60 = 52,326,806.40 : x
  2. Step 2: Convert to fraction form
    213,884,870.40/320,827,305.60 = 52,326,806.40/x
  3. Step 3: Cross multiply
    213,884,870.40x = 320,827,305.60 × 52,326,806.40
  4. Step 4: Simplify right side
    213,884,870.40x = 16,787,868,307,964,836
  5. Step 5: Solve for x
    x = 16,787,868,307,964,836/213,884,870.40
  6. Step 6: Final answer
    x = 78,490,209.60

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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.