Home / 1,029,519,130.47-1,420,737,315.54-559,620,451.43

Finding the Fourth Proportional to 1,029,519,130.47, 1,420,737,315.54 and 559,620,451.43

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Solution

The fourth proportional to 1,029,519,130.47, 1,420,737,315.54 and 559,620,451.43 is: 772,276,720.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,029,519,130.47 : 1,420,737,315.54 = 559,620,451.43 : x
  2. Step 2: Convert to fraction form
    1,029,519,130.47/1,420,737,315.54 = 559,620,451.43/x
  3. Step 3: Cross multiply
    1,029,519,130.47x = 1,420,737,315.54 × 559,620,451.43
  4. Step 4: Simplify right side
    1,029,519,130.47x = 795,073,657,887,848,832
  5. Step 5: Solve for x
    x = 795,073,657,887,848,832/1,029,519,130.47
  6. Step 6: Final answer
    x = 772,276,720.61

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1.5x scale

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.