Home / 42,830,806.68-64,246,208.40-12,538,669.68

Finding the Fourth Proportional to 42,830,806.68, 64,246,208.40 and 12,538,669.68

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Solution

The fourth proportional to 42,830,806.68, 64,246,208.40 and 12,538,669.68 is: 18,808,004.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,830,806.68 : 64,246,208.40 = 12,538,669.68 : x
  2. Step 2: Convert to fraction form
    42,830,806.68/64,246,208.40 = 12,538,669.68/x
  3. Step 3: Cross multiply
    42,830,806.68x = 64,246,208.40 × 12,538,669.68
  4. Step 4: Simplify right side
    42,830,806.68x = 805,561,985,320,041.25
  5. Step 5: Solve for x
    x = 805,561,985,320,041.25/42,830,806.68
  6. Step 6: Final answer
    x = 18,808,004.05

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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.