Home / 12,462,646.80-18,679,973.40-5,272,957.20

Finding the Fourth Proportional to 12,462,646.80, 18,679,973.40 and 5,272,957.20

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Solution

The fourth proportional to 12,462,646.80, 18,679,973.40 and 5,272,957.20 is: 7,903,513.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,462,646.80 : 18,679,973.40 = 5,272,957.20 : x
  2. Step 2: Convert to fraction form
    12,462,646.80/18,679,973.40 = 5,272,957.20/x
  3. Step 3: Cross multiply
    12,462,646.80x = 18,679,973.40 × 5,272,957.20
  4. Step 4: Simplify right side
    12,462,646.80x = 98,498,700,235,338.47
  5. Step 5: Solve for x
    x = 98,498,700,235,338.47/12,462,646.80
  6. Step 6: Final answer
    x = 7,903,513.74

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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.