Home / 78,955,439,467.12-118,436,985,925.84-25,891,778,376.88

Finding the Fourth Proportional to 78,955,439,467.12, 118,436,985,925.84 and 25,891,778,376.88

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Solution

The fourth proportional to 78,955,439,467.12, 118,436,985,925.84 and 25,891,778,376.88 is: 38,838,922,459.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,955,439,467.12 : 118,436,985,925.84 = 25,891,778,376.88 : x
  2. Step 2: Convert to fraction form
    78,955,439,467.12/118,436,985,925.84 = 25,891,778,376.88/x
  3. Step 3: Cross multiply
    78,955,439,467.12x = 118,436,985,925.84 × 25,891,778,376.88
  4. Step 4: Simplify right side
    78,955,439,467.12x = 3,066,544,191,217,505,140,736
  5. Step 5: Solve for x
    x = 3,066,544,191,217,505,140,736/78,955,439,467.12
  6. Step 6: Final answer
    x = 38,838,922,459.48

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1.5x scale

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.