Home / 30,339,721.60-45,509,582.40-12,152,629.60

Finding the Fourth Proportional to 30,339,721.60, 45,509,582.40 and 12,152,629.60

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Solution

The fourth proportional to 30,339,721.60, 45,509,582.40 and 12,152,629.60 is: 18,228,944.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,339,721.60 : 45,509,582.40 = 12,152,629.60 : x
  2. Step 2: Convert to fraction form
    30,339,721.60/45,509,582.40 = 12,152,629.60/x
  3. Step 3: Cross multiply
    30,339,721.60x = 45,509,582.40 × 12,152,629.60
  4. Step 4: Simplify right side
    30,339,721.60x = 553,061,098,157,879
  5. Step 5: Solve for x
    x = 553,061,098,157,879/30,339,721.60
  6. Step 6: Final answer
    x = 18,228,944.40

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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.