Home / 465,430,072.70-642,298,449.95-256,593,688.74

Finding the Fourth Proportional to 465,430,072.70, 642,298,449.95 and 256,593,688.74

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Solution

The fourth proportional to 465,430,072.70, 642,298,449.95 and 256,593,688.74 is: 354,102,019.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,430,072.70 : 642,298,449.95 = 256,593,688.74 : x
  2. Step 2: Convert to fraction form
    465,430,072.70/642,298,449.95 = 256,593,688.74/x
  3. Step 3: Cross multiply
    465,430,072.70x = 642,298,449.95 × 256,593,688.74
  4. Step 4: Simplify right side
    465,430,072.70x = 164,809,728,543,371,808
  5. Step 5: Solve for x
    x = 164,809,728,543,371,808/465,430,072.70
  6. Step 6: Final answer
    x = 354,102,019.21

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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.