Home / 688,835,538.60-1,033,253,307.90-251,991,036.60

Finding the Fourth Proportional to 688,835,538.60, 1,033,253,307.90 and 251,991,036.60

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Solution

The fourth proportional to 688,835,538.60, 1,033,253,307.90 and 251,991,036.60 is: 377,986,554.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,835,538.60 : 1,033,253,307.90 = 251,991,036.60 : x
  2. Step 2: Convert to fraction form
    688,835,538.60/1,033,253,307.90 = 251,991,036.60/x
  3. Step 3: Cross multiply
    688,835,538.60x = 1,033,253,307.90 × 251,991,036.60
  4. Step 4: Simplify right side
    688,835,538.60x = 260,370,572,128,099,968
  5. Step 5: Solve for x
    x = 260,370,572,128,099,968/688,835,538.60
  6. Step 6: Final answer
    x = 377,986,554.90

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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.