Home / 153,405,475.16-211,698,156.30-83,790,836.78

Finding the Fourth Proportional to 153,405,475.16, 211,698,156.30 and 83,790,836.78

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Solution

The fourth proportional to 153,405,475.16, 211,698,156.30 and 83,790,836.78 is: 115,630,590.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,405,475.16 : 211,698,156.30 = 83,790,836.78 : x
  2. Step 2: Convert to fraction form
    153,405,475.16/211,698,156.30 = 83,790,836.78/x
  3. Step 3: Cross multiply
    153,405,475.16x = 211,698,156.30 × 83,790,836.78
  4. Step 4: Simplify right side
    153,405,475.16x = 17,738,365,661,160,230
  5. Step 5: Solve for x
    x = 17,738,365,661,160,230/153,405,475.16
  6. Step 6: Final answer
    x = 115,630,590.39

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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.