Home / 712,880,548,755.21-1,069,760,655,238.40-330,353,323,356.15

Finding the Fourth Proportional to 712,880,548,755.21, 1,069,760,655,238.40 and 330,353,323,356.15

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Solution

The fourth proportional to 712,880,548,755.21, 1,069,760,655,238.40 and 330,353,323,356.15 is: 495,733,805,994.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,880,548,755.21 : 1,069,760,655,238.40 = 330,353,323,356.15 : x
  2. Step 2: Convert to fraction form
    712,880,548,755.21/1,069,760,655,238.40 = 330,353,323,356.15/x
  3. Step 3: Cross multiply
    712,880,548,755.21x = 1,069,760,655,238.40 × 330,353,323,356.15
  4. Step 4: Simplify right side
    712,880,548,755.21x = 353,398,987,653,658,095,648,768
  5. Step 5: Solve for x
    x = 353,398,987,653,658,095,648,768/712,880,548,755.21
  6. Step 6: Final answer
    x = 495,733,805,994.21

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Double scale
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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.