Home / 78,046,354,388.29-117,046,820,300.33-30,228,698,669.92

Finding the Fourth Proportional to 78,046,354,388.29, 117,046,820,300.33 and 30,228,698,669.92

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Solution

The fourth proportional to 78,046,354,388.29, 117,046,820,300.33 and 30,228,698,669.92 is: 45,334,251,533.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,046,354,388.29 : 117,046,820,300.33 = 30,228,698,669.92 : x
  2. Step 2: Convert to fraction form
    78,046,354,388.29/117,046,820,300.33 = 30,228,698,669.92/x
  3. Step 3: Cross multiply
    78,046,354,388.29x = 117,046,820,300.33 × 30,228,698,669.92
  4. Step 4: Simplify right side
    78,046,354,388.29x = 3,538,173,061,130,482,614,272
  5. Step 5: Solve for x
    x = 3,538,173,061,130,482,614,272/78,046,354,388.29
  6. Step 6: Final answer
    x = 45,334,251,533.75

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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.