Home / 86,896,670.40-130,345,005.60-85,552,977.60

Finding the Fourth Proportional to 86,896,670.40, 130,345,005.60 and 85,552,977.60

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Solution

The fourth proportional to 86,896,670.40, 130,345,005.60 and 85,552,977.60 is: 128,329,466.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,896,670.40 : 130,345,005.60 = 85,552,977.60 : x
  2. Step 2: Convert to fraction form
    86,896,670.40/130,345,005.60 = 85,552,977.60/x
  3. Step 3: Cross multiply
    86,896,670.40x = 130,345,005.60 × 85,552,977.60
  4. Step 4: Simplify right side
    86,896,670.40x = 11,151,403,344,368,674
  5. Step 5: Solve for x
    x = 11,151,403,344,368,674/86,896,670.40
  6. Step 6: Final answer
    x = 128,329,466.40

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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.