Home / 42,768,400.80-64,152,601.20-42,516,458.40

Finding the Fourth Proportional to 42,768,400.80, 64,152,601.20 and 42,516,458.40

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Solution

The fourth proportional to 42,768,400.80, 64,152,601.20 and 42,516,458.40 is: 63,774,687.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,768,400.80 : 64,152,601.20 = 42,516,458.40 : x
  2. Step 2: Convert to fraction form
    42,768,400.80/64,152,601.20 = 42,516,458.40/x
  3. Step 3: Cross multiply
    42,768,400.80x = 64,152,601.20 × 42,516,458.40
  4. Step 4: Simplify right side
    42,768,400.80x = 2,727,541,400,171,590
  5. Step 5: Solve for x
    x = 2,727,541,400,171,590/42,768,400.80
  6. Step 6: Final answer
    x = 63,774,687.60

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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.