Home / 614,191,120.75-921,286,681.17-205,247,271.25

Finding the Fourth Proportional to 614,191,120.75, 921,286,681.17 and 205,247,271.25

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Solution

The fourth proportional to 614,191,120.75, 921,286,681.17 and 205,247,271.25 is: 307,870,906.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,191,120.75 : 921,286,681.17 = 205,247,271.25 : x
  2. Step 2: Convert to fraction form
    614,191,120.75/921,286,681.17 = 205,247,271.25/x
  3. Step 3: Cross multiply
    614,191,120.75x = 921,286,681.17 × 205,247,271.25
  4. Step 4: Simplify right side
    614,191,120.75x = 189,091,577,349,111,264
  5. Step 5: Solve for x
    x = 189,091,577,349,111,264/614,191,120.75
  6. Step 6: Final answer
    x = 307,870,906.89

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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.