Home / 892,107,966.98-1,231,036,817.60-515,788,699.16

Finding the Fourth Proportional to 892,107,966.98, 1,231,036,817.60 and 515,788,699.16

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Solution

The fourth proportional to 892,107,966.98, 1,231,036,817.60 and 515,788,699.16 is: 711,746,674.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,107,966.98 : 1,231,036,817.60 = 515,788,699.16 : x
  2. Step 2: Convert to fraction form
    892,107,966.98/1,231,036,817.60 = 515,788,699.16/x
  3. Step 3: Cross multiply
    892,107,966.98x = 1,231,036,817.60 × 515,788,699.16
  4. Step 4: Simplify right side
    892,107,966.98x = 634,954,878,767,970,176
  5. Step 5: Solve for x
    x = 634,954,878,767,970,176/892,107,966.98
  6. Step 6: Final answer
    x = 711,746,674.47

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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.