Home / 30,575,478.71-42,178,081.53-18,176,752.58

Finding the Fourth Proportional to 30,575,478.71, 42,178,081.53 and 18,176,752.58

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Solution

The fourth proportional to 30,575,478.71, 42,178,081.53 and 18,176,752.58 is: 25,074,359.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,575,478.71 : 42,178,081.53 = 18,176,752.58 : x
  2. Step 2: Convert to fraction form
    30,575,478.71/42,178,081.53 = 18,176,752.58/x
  3. Step 3: Cross multiply
    30,575,478.71x = 42,178,081.53 × 18,176,752.58
  4. Step 4: Simplify right side
    30,575,478.71x = 766,660,552,058,987.38
  5. Step 5: Solve for x
    x = 766,660,552,058,987.38/30,575,478.71
  6. Step 6: Final answer
    x = 25,074,359.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.