Home / 42,830,824.81-64,246,235.59-12,538,687.81

Finding the Fourth Proportional to 42,830,824.81, 64,246,235.59 and 12,538,687.81

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Solution

The fourth proportional to 42,830,824.81, 64,246,235.59 and 12,538,687.81 is: 18,808,031.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,830,824.81 : 64,246,235.59 = 12,538,687.81 : x
  2. Step 2: Convert to fraction form
    42,830,824.81/64,246,235.59 = 12,538,687.81/x
  3. Step 3: Cross multiply
    42,830,824.81x = 64,246,235.59 × 12,538,687.81
  4. Step 4: Simplify right side
    42,830,824.81x = 805,563,490,678,143.25
  5. Step 5: Solve for x
    x = 805,563,490,678,143.25/42,830,824.81
  6. Step 6: Final answer
    x = 18,808,031.23

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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.