Home / 154,243,718.48-212,856,744.04-83,679,328.48

Finding the Fourth Proportional to 154,243,718.48, 212,856,744.04 and 83,679,328.48

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Solution

The fourth proportional to 154,243,718.48, 212,856,744.04 and 83,679,328.48 is: 115,477,697.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,243,718.48 : 212,856,744.04 = 83,679,328.48 : x
  2. Step 2: Convert to fraction form
    154,243,718.48/212,856,744.04 = 83,679,328.48/x
  3. Step 3: Cross multiply
    154,243,718.48x = 212,856,744.04 × 83,679,328.48
  4. Step 4: Simplify right side
    154,243,718.48x = 17,811,709,403,706,442
  5. Step 5: Solve for x
    x = 17,811,709,403,706,442/154,243,718.48
  6. Step 6: Final answer
    x = 115,477,697.11

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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.