Home / 30,573,449.47-42,177,457.79-18,176,508.70

Finding the Fourth Proportional to 30,573,449.47, 42,177,457.79 and 18,176,508.70

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Solution

The fourth proportional to 30,573,449.47, 42,177,457.79 and 18,176,508.70 is: 25,075,316.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,573,449.47 : 42,177,457.79 = 18,176,508.70 : x
  2. Step 2: Convert to fraction form
    30,573,449.47/42,177,457.79 = 18,176,508.70/x
  3. Step 3: Cross multiply
    30,573,449.47x = 42,177,457.79 × 18,176,508.70
  4. Step 4: Simplify right side
    30,573,449.47x = 766,638,928,162,047.88
  5. Step 5: Solve for x
    x = 766,638,928,162,047.88/30,573,449.47
  6. Step 6: Final answer
    x = 25,075,316.71

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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.