Home / 211,266,810.08-291,600,060.72-128,806,062.56

Finding the Fourth Proportional to 211,266,810.08, 291,600,060.72 and 128,806,062.56

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Solution

The fourth proportional to 211,266,810.08, 291,600,060.72 and 128,806,062.56 is: 177,783,986.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,266,810.08 : 291,600,060.72 = 128,806,062.56 : x
  2. Step 2: Convert to fraction form
    211,266,810.08/291,600,060.72 = 128,806,062.56/x
  3. Step 3: Cross multiply
    211,266,810.08x = 291,600,060.72 × 128,806,062.56
  4. Step 4: Simplify right side
    211,266,810.08x = 37,559,855,663,600,120
  5. Step 5: Solve for x
    x = 37,559,855,663,600,120/211,266,810.08
  6. Step 6: Final answer
    x = 177,783,986.27

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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.