Home / 5,280,587,763.15-7,920,881,644.73-4,428,262,687.35

Finding the Fourth Proportional to 5,280,587,763.15, 7,920,881,644.73 and 4,428,262,687.35

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Solution

The fourth proportional to 5,280,587,763.15, 7,920,881,644.73 and 4,428,262,687.35 is: 6,642,394,031.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280,587,763.15 : 7,920,881,644.73 = 4,428,262,687.35 : x
  2. Step 2: Convert to fraction form
    5,280,587,763.15/7,920,881,644.73 = 4,428,262,687.35/x
  3. Step 3: Cross multiply
    5,280,587,763.15x = 7,920,881,644.73 × 4,428,262,687.35
  4. Step 4: Simplify right side
    5,280,587,763.15x = 35,075,744,638,273,359,872
  5. Step 5: Solve for x
    x = 35,075,744,638,273,359,872/5,280,587,763.15
  6. Step 6: Final answer
    x = 6,642,394,031.03

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1.5x scale

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.