Home / 287,485,615.80-431,228,423.70-93,403,362.60

Finding the Fourth Proportional to 287,485,615.80, 431,228,423.70 and 93,403,362.60

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Solution

The fourth proportional to 287,485,615.80, 431,228,423.70 and 93,403,362.60 is: 140,105,043.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,485,615.80 : 431,228,423.70 = 93,403,362.60 : x
  2. Step 2: Convert to fraction form
    287,485,615.80/431,228,423.70 = 93,403,362.60/x
  3. Step 3: Cross multiply
    287,485,615.80x = 431,228,423.70 × 93,403,362.60
  4. Step 4: Simplify right side
    287,485,615.80x = 40,278,184,822,277,528
  5. Step 5: Solve for x
    x = 40,278,184,822,277,528/287,485,615.80
  6. Step 6: Final answer
    x = 140,105,043.90

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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.