Home / 78,166,926,280.90-117,250,389,421.35-78,166,926,280.90

Finding the Fourth Proportional to 78,166,926,280.90, 117,250,389,421.35 and 78,166,926,280.90

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Solution

The fourth proportional to 78,166,926,280.90, 117,250,389,421.35 and 78,166,926,280.90 is: 117,250,389,421.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,166,926,280.90 : 117,250,389,421.35 = 78,166,926,280.90 : x
  2. Step 2: Convert to fraction form
    78,166,926,280.90/117,250,389,421.35 = 78,166,926,280.90/x
  3. Step 3: Cross multiply
    78,166,926,280.90x = 117,250,389,421.35 × 78,166,926,280.90
  4. Step 4: Simplify right side
    78,166,926,280.90x = 9,165,102,546,305,482,227,712
  5. Step 5: Solve for x
    x = 9,165,102,546,305,482,227,712/78,166,926,280.90
  6. Step 6: Final answer
    x = 117,250,389,421.35

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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.