Home / 558,745,681.22-771,092,827.64-311,227,144.82

Finding the Fourth Proportional to 558,745,681.22, 771,092,827.64 and 311,227,144.82

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Solution

The fourth proportional to 558,745,681.22, 771,092,827.64 and 311,227,144.82 is: 429,506,709.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,745,681.22 : 771,092,827.64 = 311,227,144.82 : x
  2. Step 2: Convert to fraction form
    558,745,681.22/771,092,827.64 = 311,227,144.82/x
  3. Step 3: Cross multiply
    558,745,681.22x = 771,092,827.64 × 311,227,144.82
  4. Step 4: Simplify right side
    558,745,681.22x = 239,985,019,132,165,984
  5. Step 5: Solve for x
    x = 239,985,019,132,165,984/558,745,681.22
  6. Step 6: Final answer
    x = 429,506,709.76

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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.