Home / 9,391,038,813.69-12,959,459,217.59-5,161,860,291.93

Finding the Fourth Proportional to 9,391,038,813.69, 12,959,459,217.59 and 5,161,860,291.93

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Solution

The fourth proportional to 9,391,038,813.69, 12,959,459,217.59 and 5,161,860,291.93 is: 7,123,271,372.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,391,038,813.69 : 12,959,459,217.59 = 5,161,860,291.93 : x
  2. Step 2: Convert to fraction form
    9,391,038,813.69/12,959,459,217.59 = 5,161,860,291.93/x
  3. Step 3: Cross multiply
    9,391,038,813.69x = 12,959,459,217.59 × 5,161,860,291.93
  4. Step 4: Simplify right side
    9,391,038,813.69x = 66,894,917,940,138,237,952
  5. Step 5: Solve for x
    x = 66,894,917,940,138,237,952/9,391,038,813.69
  6. Step 6: Final answer
    x = 7,123,271,372.56

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1.5x scale

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.