Home / 390,252,276.57-585,144,575.38-124,243,026.96

Finding the Fourth Proportional to 390,252,276.57, 585,144,575.38 and 124,243,026.96

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Solution

The fourth proportional to 390,252,276.57, 585,144,575.38 and 124,243,026.96 is: 186,290,093.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,252,276.57 : 585,144,575.38 = 124,243,026.96 : x
  2. Step 2: Convert to fraction form
    390,252,276.57/585,144,575.38 = 124,243,026.96/x
  3. Step 3: Cross multiply
    390,252,276.57x = 585,144,575.38 × 124,243,026.96
  4. Step 4: Simplify right side
    390,252,276.57x = 72,700,133,254,435,088
  5. Step 5: Solve for x
    x = 72,700,133,254,435,088/390,252,276.57
  6. Step 6: Final answer
    x = 186,290,093.92

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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.