Home / 51,388,445.79-70,920,539.45-28,188,056.80

Finding the Fourth Proportional to 51,388,445.79, 70,920,539.45 and 28,188,056.80

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Solution

The fourth proportional to 51,388,445.79, 70,920,539.45 and 28,188,056.80 is: 38,901,978.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,388,445.79 : 70,920,539.45 = 28,188,056.80 : x
  2. Step 2: Convert to fraction form
    51,388,445.79/70,920,539.45 = 28,188,056.80/x
  3. Step 3: Cross multiply
    51,388,445.79x = 70,920,539.45 × 28,188,056.80
  4. Step 4: Simplify right side
    51,388,445.79x = 1,999,112,194,356,656.50
  5. Step 5: Solve for x
    x = 1,999,112,194,356,656.50/51,388,445.79
  6. Step 6: Final answer
    x = 38,901,978.13

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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.