Home / 389,644,916.32-584,494,642.32-156,475,590.40

Finding the Fourth Proportional to 389,644,916.32, 584,494,642.32 and 156,475,590.40

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Solution

The fourth proportional to 389,644,916.32, 584,494,642.32 and 156,475,590.40 is: 234,724,335.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,644,916.32 : 584,494,642.32 = 156,475,590.40 : x
  2. Step 2: Convert to fraction form
    389,644,916.32/584,494,642.32 = 156,475,590.40/x
  3. Step 3: Cross multiply
    389,644,916.32x = 584,494,642.32 × 156,475,590.40
  4. Step 4: Simplify right side
    389,644,916.32x = 91,459,144,242,658,832
  5. Step 5: Solve for x
    x = 91,459,144,242,658,832/389,644,916.32
  6. Step 6: Final answer
    x = 234,724,335.96

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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.