Home / 79,245,867,811.12-118,921,103,486.16-42,007,010,408.80

Finding the Fourth Proportional to 79,245,867,811.12, 118,921,103,486.16 and 42,007,010,408.80

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Solution

The fourth proportional to 79,245,867,811.12, 118,921,103,486.16 and 42,007,010,408.80 is: 63,038,239,973.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,245,867,811.12 : 118,921,103,486.16 = 42,007,010,408.80 : x
  2. Step 2: Convert to fraction form
    79,245,867,811.12/118,921,103,486.16 = 42,007,010,408.80/x
  3. Step 3: Cross multiply
    79,245,867,811.12x = 118,921,103,486.16 × 42,007,010,408.80
  4. Step 4: Simplify right side
    79,245,867,811.12x = 4,995,520,031,969,105,674,240
  5. Step 5: Solve for x
    x = 4,995,520,031,969,105,674,240/79,245,867,811.12
  6. Step 6: Final answer
    x = 63,038,239,973.29

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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.