Home / 393,985,021.60-590,977,532.40-238,788,503.20

Finding the Fourth Proportional to 393,985,021.60, 590,977,532.40 and 238,788,503.20

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Solution

The fourth proportional to 393,985,021.60, 590,977,532.40 and 238,788,503.20 is: 358,182,754.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,985,021.60 : 590,977,532.40 = 238,788,503.20 : x
  2. Step 2: Convert to fraction form
    393,985,021.60/590,977,532.40 = 238,788,503.20/x
  3. Step 3: Cross multiply
    393,985,021.60x = 590,977,532.40 × 238,788,503.20
  4. Step 4: Simplify right side
    393,985,021.60x = 141,118,640,386,625,488
  5. Step 5: Solve for x
    x = 141,118,640,386,625,488/393,985,021.60
  6. Step 6: Final answer
    x = 358,182,754.80

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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.