Home / 171,663,089.40-257,494,634.10-99,103,678.20

Finding the Fourth Proportional to 171,663,089.40, 257,494,634.10 and 99,103,678.20

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Solution

The fourth proportional to 171,663,089.40, 257,494,634.10 and 99,103,678.20 is: 148,655,517.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,663,089.40 : 257,494,634.10 = 99,103,678.20 : x
  2. Step 2: Convert to fraction form
    171,663,089.40/257,494,634.10 = 99,103,678.20/x
  3. Step 3: Cross multiply
    171,663,089.40x = 257,494,634.10 × 99,103,678.20
  4. Step 4: Simplify right side
    171,663,089.40x = 25,518,665,356,073,148
  5. Step 5: Solve for x
    x = 25,518,665,356,073,148/171,663,089.40
  6. Step 6: Final answer
    x = 148,655,517.30

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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.