Home / 72,266,783.20-99,728,256.24-39,227,010.40

Finding the Fourth Proportional to 72,266,783.20, 99,728,256.24 and 39,227,010.40

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Solution

The fourth proportional to 72,266,783.20, 99,728,256.24 and 39,227,010.40 is: 54,133,326.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,266,783.20 : 99,728,256.24 = 39,227,010.40 : x
  2. Step 2: Convert to fraction form
    72,266,783.20/99,728,256.24 = 39,227,010.40/x
  3. Step 3: Cross multiply
    72,266,783.20x = 99,728,256.24 × 39,227,010.40
  4. Step 4: Simplify right side
    72,266,783.20x = 3,912,041,344,700,344.50
  5. Step 5: Solve for x
    x = 3,912,041,344,700,344.50/72,266,783.20
  6. Step 6: Final answer
    x = 54,133,326.15

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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.