Home / 425,740,439.80-638,610,659.70-153,075,777.40

Finding the Fourth Proportional to 425,740,439.80, 638,610,659.70 and 153,075,777.40

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Solution

The fourth proportional to 425,740,439.80, 638,610,659.70 and 153,075,777.40 is: 229,613,666.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,740,439.80 : 638,610,659.70 = 153,075,777.40 : x
  2. Step 2: Convert to fraction form
    425,740,439.80/638,610,659.70 = 153,075,777.40/x
  3. Step 3: Cross multiply
    425,740,439.80x = 638,610,659.70 × 153,075,777.40
  4. Step 4: Simplify right side
    425,740,439.80x = 97,755,823,189,504,368
  5. Step 5: Solve for x
    x = 97,755,823,189,504,368/425,740,439.80
  6. Step 6: Final answer
    x = 229,613,666.10

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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.