Home / 15,752,858,404.36-21,745,638,203.72-9,815,344,460.68

Finding the Fourth Proportional to 15,752,858,404.36, 21,745,638,203.72 and 9,815,344,460.68

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Solution

The fourth proportional to 15,752,858,404.36, 21,745,638,203.72 and 9,815,344,460.68 is: 13,549,346,030.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,752,858,404.36 : 21,745,638,203.72 = 9,815,344,460.68 : x
  2. Step 2: Convert to fraction form
    15,752,858,404.36/21,745,638,203.72 = 9,815,344,460.68/x
  3. Step 3: Cross multiply
    15,752,858,404.36x = 21,745,638,203.72 × 9,815,344,460.68
  4. Step 4: Simplify right side
    15,752,858,404.36x = 213,440,929,486,834,499,584
  5. Step 5: Solve for x
    x = 213,440,929,486,834,499,584/15,752,858,404.36
  6. Step 6: Final answer
    x = 13,549,346,030.29

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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.