Home / 1,455,281,999.40-2,182,922,999.10-728,008,271.40

Finding the Fourth Proportional to 1,455,281,999.40, 2,182,922,999.10 and 728,008,271.40

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Solution

The fourth proportional to 1,455,281,999.40, 2,182,922,999.10 and 728,008,271.40 is: 1,092,012,407.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,455,281,999.40 : 2,182,922,999.10 = 728,008,271.40 : x
  2. Step 2: Convert to fraction form
    1,455,281,999.40/2,182,922,999.10 = 728,008,271.40/x
  3. Step 3: Cross multiply
    1,455,281,999.40x = 2,182,922,999.10 × 728,008,271.40
  4. Step 4: Simplify right side
    1,455,281,999.40x = 1,589,185,999,174,094,592
  5. Step 5: Solve for x
    x = 1,589,185,999,174,094,592/1,455,281,999.40
  6. Step 6: Final answer
    x = 1,092,012,407.10

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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.