Home / 1,395,368,120.71-1,925,002,994.02-830,536,267.15

Finding the Fourth Proportional to 1,395,368,120.71, 1,925,002,994.02 and 830,536,267.15

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Solution

The fourth proportional to 1,395,368,120.71, 1,925,002,994.02 and 830,536,267.15 is: 1,145,779,939.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,395,368,120.71 : 1,925,002,994.02 = 830,536,267.15 : x
  2. Step 2: Convert to fraction form
    1,395,368,120.71/1,925,002,994.02 = 830,536,267.15/x
  3. Step 3: Cross multiply
    1,395,368,120.71x = 1,925,002,994.02 × 830,536,267.15
  4. Step 4: Simplify right side
    1,395,368,120.71x = 1,598,784,800,905,944,576
  5. Step 5: Solve for x
    x = 1,598,784,800,905,944,576/1,395,368,120.71
  6. Step 6: Final answer
    x = 1,145,779,939.48

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Double scale
Find fourth proportional to 1,395,368,121.71, 1,925,002,995.40 and 830,536,268.15
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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.