Home / 771,975,962.24-1,065,335,057.36-419,551,971.20

Finding the Fourth Proportional to 771,975,962.24, 1,065,335,057.36 and 419,551,971.20

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Solution

The fourth proportional to 771,975,962.24, 1,065,335,057.36 and 419,551,971.20 is: 578,986,192.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,975,962.24 : 1,065,335,057.36 = 419,551,971.20 : x
  2. Step 2: Convert to fraction form
    771,975,962.24/1,065,335,057.36 = 419,551,971.20/x
  3. Step 3: Cross multiply
    771,975,962.24x = 1,065,335,057.36 × 419,551,971.20
  4. Step 4: Simplify right side
    771,975,962.24x = 446,963,423,303,853,056
  5. Step 5: Solve for x
    x = 446,963,423,303,853,056/771,975,962.24
  6. Step 6: Final answer
    x = 578,986,192.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.