Home / 20,810,200.05-28,716,130.40-12,435,908.00

Finding the Fourth Proportional to 20,810,200.05, 28,716,130.40 and 12,435,908.00

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Solution

The fourth proportional to 20,810,200.05, 28,716,130.40 and 12,435,908.00 is: 17,160,390.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,810,200.05 : 28,716,130.40 = 12,435,908.00 : x
  2. Step 2: Convert to fraction form
    20,810,200.05/28,716,130.40 = 12,435,908.00/x
  3. Step 3: Cross multiply
    20,810,200.05x = 28,716,130.40 × 12,435,908.00
  4. Step 4: Simplify right side
    20,810,200.05x = 357,111,155,564,643
  5. Step 5: Solve for x
    x = 357,111,155,564,643/20,810,200.05
  6. Step 6: Final answer
    x = 17,160,390.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.