Home / 153,617,994,210.55-211,988,229,789.67-85,032,218,629.61

Finding the Fourth Proportional to 153,617,994,210.55, 211,988,229,789.67 and 85,032,218,629.61

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Solution

The fourth proportional to 153,617,994,210.55, 211,988,229,789.67 and 85,032,218,629.61 is: 117,341,914,240.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,617,994,210.55 : 211,988,229,789.67 = 85,032,218,629.61 : x
  2. Step 2: Convert to fraction form
    153,617,994,210.55/211,988,229,789.67 = 85,032,218,629.61/x
  3. Step 3: Cross multiply
    153,617,994,210.55x = 211,988,229,789.67 × 85,032,218,629.61
  4. Step 4: Simplify right side
    153,617,994,210.55x = 18,025,829,502,379,223,941,120
  5. Step 5: Solve for x
    x = 18,025,829,502,379,223,941,120/153,617,994,210.55
  6. Step 6: Final answer
    x = 117,341,914,240.03

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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.