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Finding the Fourth Proportional to 290,248,262.35, 407,495,479.85 and 290,248,262.35

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Solution

The fourth proportional to 290,248,262.35, 407,495,479.85 and 290,248,262.35 is: 407,495,479.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,248,262.35 : 407,495,479.85 = 290,248,262.35 : x
  2. Step 2: Convert to fraction form
    290,248,262.35/407,495,479.85 = 290,248,262.35/x
  3. Step 3: Cross multiply
    290,248,262.35x = 407,495,479.85 × 290,248,262.35
  4. Step 4: Simplify right side
    290,248,262.35x = 118,274,854,941,941,952
  5. Step 5: Solve for x
    x = 118,274,854,941,941,952/290,248,262.35
  6. Step 6: Final answer
    x = 407,495,479.85

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.