Home / 153,666,697.10-212,057,549.94-84,051,469.04

Finding the Fourth Proportional to 153,666,697.10, 212,057,549.94 and 84,051,469.04

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Solution

The fourth proportional to 153,666,697.10, 212,057,549.94 and 84,051,469.04 is: 115,989,664.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,666,697.10 : 212,057,549.94 = 84,051,469.04 : x
  2. Step 2: Convert to fraction form
    153,666,697.10/212,057,549.94 = 84,051,469.04/x
  3. Step 3: Cross multiply
    153,666,697.10x = 212,057,549.94 × 84,051,469.04
  4. Step 4: Simplify right side
    153,666,697.10x = 17,823,748,593,480,166
  5. Step 5: Solve for x
    x = 17,823,748,593,480,166/153,666,697.10
  6. Step 6: Final answer
    x = 115,989,664.19

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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.