Home / 818,949,970.60-1,228,424,955.90-266,251,330.60

Finding the Fourth Proportional to 818,949,970.60, 1,228,424,955.90 and 266,251,330.60

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Solution

The fourth proportional to 818,949,970.60, 1,228,424,955.90 and 266,251,330.60 is: 399,376,995.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,949,970.60 : 1,228,424,955.90 = 266,251,330.60 : x
  2. Step 2: Convert to fraction form
    818,949,970.60/1,228,424,955.90 = 266,251,330.60/x
  3. Step 3: Cross multiply
    818,949,970.60x = 1,228,424,955.90 × 266,251,330.60
  4. Step 4: Simplify right side
    818,949,970.60x = 327,069,779,050,621,312
  5. Step 5: Solve for x
    x = 327,069,779,050,621,312/818,949,970.60
  6. Step 6: Final answer
    x = 399,376,995.90

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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.