Home / 2,128,322,746.40-3,192,484,119.60-1,402,131,437.60

Finding the Fourth Proportional to 2,128,322,746.40, 3,192,484,119.60 and 1,402,131,437.60

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Solution

The fourth proportional to 2,128,322,746.40, 3,192,484,119.60 and 1,402,131,437.60 is: 2,103,197,156.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128,322,746.40 : 3,192,484,119.60 = 1,402,131,437.60 : x
  2. Step 2: Convert to fraction form
    2,128,322,746.40/3,192,484,119.60 = 1,402,131,437.60/x
  3. Step 3: Cross multiply
    2,128,322,746.40x = 3,192,484,119.60 × 1,402,131,437.60
  4. Step 4: Simplify right side
    2,128,322,746.40x = 4,476,282,348,129,917,952
  5. Step 5: Solve for x
    x = 4,476,282,348,129,917,952/2,128,322,746.40
  6. Step 6: Final answer
    x = 2,103,197,156.40

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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.