Home / 190,152,380.12-285,334,547.34-102,712,134.92

Finding the Fourth Proportional to 190,152,380.12, 285,334,547.34 and 102,712,134.92

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Solution

The fourth proportional to 190,152,380.12, 285,334,547.34 and 102,712,134.92 is: 154,125,446.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,152,380.12 : 285,334,547.34 = 102,712,134.92 : x
  2. Step 2: Convert to fraction form
    190,152,380.12/285,334,547.34 = 102,712,134.92/x
  3. Step 3: Cross multiply
    190,152,380.12x = 285,334,547.34 × 102,712,134.92
  4. Step 4: Simplify right side
    190,152,380.12x = 29,307,320,522,753,088
  5. Step 5: Solve for x
    x = 29,307,320,522,753,088/190,152,380.12
  6. Step 6: Final answer
    x = 154,125,446.68

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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.