Home / 7,144,805,075.34-9,859,839,178.27-3,972,920,890.47

Finding the Fourth Proportional to 7,144,805,075.34, 9,859,839,178.27 and 3,972,920,890.47

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Solution

The fourth proportional to 7,144,805,075.34, 9,859,839,178.27 and 3,972,920,890.47 is: 5,482,635,374.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,144,805,075.34 : 9,859,839,178.27 = 3,972,920,890.47 : x
  2. Step 2: Convert to fraction form
    7,144,805,075.34/9,859,839,178.27 = 3,972,920,890.47/x
  3. Step 3: Cross multiply
    7,144,805,075.34x = 9,859,839,178.27 × 3,972,920,890.47
  4. Step 4: Simplify right side
    7,144,805,075.34x = 39,172,361,048,023,441,408
  5. Step 5: Solve for x
    x = 39,172,361,048,023,441,408/7,144,805,075.34
  6. Step 6: Final answer
    x = 5,482,635,374.23

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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.