Home / 42,163,903.20-63,105,886.80-30,616,543.20

Finding the Fourth Proportional to 42,163,903.20, 63,105,886.80 and 30,616,543.20

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Solution

The fourth proportional to 42,163,903.20, 63,105,886.80 and 30,616,543.20 is: 45,823,179.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,163,903.20 : 63,105,886.80 = 30,616,543.20 : x
  2. Step 2: Convert to fraction form
    42,163,903.20/63,105,886.80 = 30,616,543.20/x
  3. Step 3: Cross multiply
    42,163,903.20x = 63,105,886.80 × 30,616,543.20
  4. Step 4: Simplify right side
    42,163,903.20x = 1,932,084,109,386,509.50
  5. Step 5: Solve for x
    x = 1,932,084,109,386,509.50/42,163,903.20
  6. Step 6: Final answer
    x = 45,823,179.61

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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.