Home / 1,129,748,351.15-1,559,012,960.54-621,107,361.11

Finding the Fourth Proportional to 1,129,748,351.15, 1,559,012,960.54 and 621,107,361.11

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Solution

The fourth proportional to 1,129,748,351.15, 1,559,012,960.54 and 621,107,361.11 is: 857,106,297.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,748,351.15 : 1,559,012,960.54 = 621,107,361.11 : x
  2. Step 2: Convert to fraction form
    1,129,748,351.15/1,559,012,960.54 = 621,107,361.11/x
  3. Step 3: Cross multiply
    1,129,748,351.15x = 1,559,012,960.54 × 621,107,361.11
  4. Step 4: Simplify right side
    1,129,748,351.15x = 968,314,425,851,045,760
  5. Step 5: Solve for x
    x = 968,314,425,851,045,760/1,129,748,351.15
  6. Step 6: Final answer
    x = 857,106,297.05

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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.