Home / 85,927,926.87-128,903,778.95-27,637,259.67

Finding the Fourth Proportional to 85,927,926.87, 128,903,778.95 and 27,637,259.67

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Solution

The fourth proportional to 85,927,926.87, 128,903,778.95 and 27,637,259.67 is: 41,459,713.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,927,926.87 : 128,903,778.95 = 27,637,259.67 : x
  2. Step 2: Convert to fraction form
    85,927,926.87/128,903,778.95 = 27,637,259.67/x
  3. Step 3: Cross multiply
    85,927,926.87x = 128,903,778.95 × 27,637,259.67
  4. Step 4: Simplify right side
    85,927,926.87x = 3,562,547,211,147,243.50
  5. Step 5: Solve for x
    x = 3,562,547,211,147,243.50/85,927,926.87
  6. Step 6: Final answer
    x = 41,459,713.28

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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.