Home / 957,818,814.54-1,321,539,821.10-561,128,554.80

Finding the Fourth Proportional to 957,818,814.54, 1,321,539,821.10 and 561,128,554.80

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Solution

The fourth proportional to 957,818,814.54, 1,321,539,821.10 and 561,128,554.80 is: 774,210,861.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    957,818,814.54 : 1,321,539,821.10 = 561,128,554.80 : x
  2. Step 2: Convert to fraction form
    957,818,814.54/1,321,539,821.10 = 561,128,554.80/x
  3. Step 3: Cross multiply
    957,818,814.54x = 1,321,539,821.10 × 561,128,554.80
  4. Step 4: Simplify right side
    957,818,814.54x = 741,553,729,924,493,440
  5. Step 5: Solve for x
    x = 741,553,729,924,493,440/957,818,814.54
  6. Step 6: Final answer
    x = 774,210,861.87

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1.5x scale

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.