Home / 86,927,904.40-130,391,856.60-85,584,211.60

Finding the Fourth Proportional to 86,927,904.40, 130,391,856.60 and 85,584,211.60

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Solution

The fourth proportional to 86,927,904.40, 130,391,856.60 and 85,584,211.60 is: 128,376,317.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,927,904.40 : 130,391,856.60 = 85,584,211.60 : x
  2. Step 2: Convert to fraction form
    86,927,904.40/130,391,856.60 = 85,584,211.60/x
  3. Step 3: Cross multiply
    86,927,904.40x = 130,391,856.60 × 85,584,211.60
  4. Step 4: Simplify right side
    86,927,904.40x = 11,159,484,246,171,256
  5. Step 5: Solve for x
    x = 11,159,484,246,171,256/86,927,904.40
  6. Step 6: Final answer
    x = 128,376,317.40

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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.