Home / 1,328,487,036.18-1,991,959,602.88-628,973,299.72

Finding the Fourth Proportional to 1,328,487,036.18, 1,991,959,602.88 and 628,973,299.72

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Solution

The fourth proportional to 1,328,487,036.18, 1,991,959,602.88 and 628,973,299.72 is: 943,094,942.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,487,036.18 : 1,991,959,602.88 = 628,973,299.72 : x
  2. Step 2: Convert to fraction form
    1,328,487,036.18/1,991,959,602.88 = 628,973,299.72/x
  3. Step 3: Cross multiply
    1,328,487,036.18x = 1,991,959,602.88 × 628,973,299.72
  4. Step 4: Simplify right side
    1,328,487,036.18x = 1,252,889,404,332,374,528
  5. Step 5: Solve for x
    x = 1,252,889,404,332,374,528/1,328,487,036.18
  6. Step 6: Final answer
    x = 943,094,942.00

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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.