Home / 1,409,091,975.40-2,113,637,963.10-919,315,949.80

Finding the Fourth Proportional to 1,409,091,975.40, 2,113,637,963.10 and 919,315,949.80

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Solution

The fourth proportional to 1,409,091,975.40, 2,113,637,963.10 and 919,315,949.80 is: 1,378,973,924.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,091,975.40 : 2,113,637,963.10 = 919,315,949.80 : x
  2. Step 2: Convert to fraction form
    1,409,091,975.40/2,113,637,963.10 = 919,315,949.80/x
  3. Step 3: Cross multiply
    1,409,091,975.40x = 2,113,637,963.10 × 919,315,949.80
  4. Step 4: Simplify right side
    1,409,091,975.40x = 1,943,101,091,580,613,632
  5. Step 5: Solve for x
    x = 1,943,101,091,580,613,632/1,409,091,975.40
  6. Step 6: Final answer
    x = 1,378,973,924.70

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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.