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Finding the Fourth Proportional to 398,603,242.89, 549,968,737.86 and 233,502,238.89

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Solution

The fourth proportional to 398,603,242.89, 549,968,737.86 and 233,502,238.89 is: 322,172,320.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,603,242.89 : 549,968,737.86 = 233,502,238.89 : x
  2. Step 2: Convert to fraction form
    398,603,242.89/549,968,737.86 = 233,502,238.89/x
  3. Step 3: Cross multiply
    398,603,242.89x = 549,968,737.86 × 233,502,238.89
  4. Step 4: Simplify right side
    398,603,242.89x = 128,418,931,609,817,504
  5. Step 5: Solve for x
    x = 128,418,931,609,817,504/398,603,242.89
  6. Step 6: Final answer
    x = 322,172,320.22

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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.