Home / 28,355,209.20-42,532,813.80-13,210,671.60

Finding the Fourth Proportional to 28,355,209.20, 42,532,813.80 and 13,210,671.60

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Solution

The fourth proportional to 28,355,209.20, 42,532,813.80 and 13,210,671.60 is: 19,816,007.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,355,209.20 : 42,532,813.80 = 13,210,671.60 : x
  2. Step 2: Convert to fraction form
    28,355,209.20/42,532,813.80 = 13,210,671.60/x
  3. Step 3: Cross multiply
    28,355,209.20x = 42,532,813.80 × 13,210,671.60
  4. Step 4: Simplify right side
    28,355,209.20x = 561,887,035,335,748
  5. Step 5: Solve for x
    x = 561,887,035,335,748/28,355,209.20
  6. Step 6: Final answer
    x = 19,816,007.40

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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.