Home / 1,107,319,561.80-1,661,617,071.90-417,721,720.20

Finding the Fourth Proportional to 1,107,319,561.80, 1,661,617,071.90 and 417,721,720.20

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Solution

The fourth proportional to 1,107,319,561.80, 1,661,617,071.90 and 417,721,720.20 is: 626,823,155.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,319,561.80 : 1,661,617,071.90 = 417,721,720.20 : x
  2. Step 2: Convert to fraction form
    1,107,319,561.80/1,661,617,071.90 = 417,721,720.20/x
  3. Step 3: Cross multiply
    1,107,319,561.80x = 1,661,617,071.90 × 417,721,720.20
  4. Step 4: Simplify right side
    1,107,319,561.80x = 694,093,541,587,755,136
  5. Step 5: Solve for x
    x = 694,093,541,587,755,136/1,107,319,561.80
  6. Step 6: Final answer
    x = 626,823,155.24

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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.