Home / 1,975,871,920.80-2,963,807,881.20-521,849,344.80

Finding the Fourth Proportional to 1,975,871,920.80, 2,963,807,881.20 and 521,849,344.80

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Solution

The fourth proportional to 1,975,871,920.80, 2,963,807,881.20 and 521,849,344.80 is: 782,774,017.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,975,871,920.80 : 2,963,807,881.20 = 521,849,344.80 : x
  2. Step 2: Convert to fraction form
    1,975,871,920.80/2,963,807,881.20 = 521,849,344.80/x
  3. Step 3: Cross multiply
    1,975,871,920.80x = 2,963,807,881.20 × 521,849,344.80
  4. Step 4: Simplify right side
    1,975,871,920.80x = 1,546,661,200,917,296,128
  5. Step 5: Solve for x
    x = 1,546,661,200,917,296,128/1,975,871,920.80
  6. Step 6: Final answer
    x = 782,774,017.20

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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.