Home / 30,347,357.60-45,521,036.40-28,331,818.40

Finding the Fourth Proportional to 30,347,357.60, 45,521,036.40 and 28,331,818.40

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Solution

The fourth proportional to 30,347,357.60, 45,521,036.40 and 28,331,818.40 is: 42,497,727.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,347,357.60 : 45,521,036.40 = 28,331,818.40 : x
  2. Step 2: Convert to fraction form
    30,347,357.60/45,521,036.40 = 28,331,818.40/x
  3. Step 3: Cross multiply
    30,347,357.60x = 45,521,036.40 × 28,331,818.40
  4. Step 4: Simplify right side
    30,347,357.60x = 1,289,693,736,664,589.75
  5. Step 5: Solve for x
    x = 1,289,693,736,664,589.75/30,347,357.60
  6. Step 6: Final answer
    x = 42,497,727.60

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1.5x scale

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.