Home / 81,443,187,168.65-112,407,158,915.40-53,928,243,075.59

Finding the Fourth Proportional to 81,443,187,168.65, 112,407,158,915.40 and 53,928,243,075.59

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Solution

The fourth proportional to 81,443,187,168.65, 112,407,158,915.40 and 53,928,243,075.59 is: 74,431,279,032.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,443,187,168.65 : 112,407,158,915.40 = 53,928,243,075.59 : x
  2. Step 2: Convert to fraction form
    81,443,187,168.65/112,407,158,915.40 = 53,928,243,075.59/x
  3. Step 3: Cross multiply
    81,443,187,168.65x = 112,407,158,915.40 × 53,928,243,075.59
  4. Step 4: Simplify right side
    81,443,187,168.65x = 6,061,920,589,425,601,937,408
  5. Step 5: Solve for x
    x = 6,061,920,589,425,601,937,408/81,443,187,168.65
  6. Step 6: Final answer
    x = 74,431,279,032.26

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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.