Home / 157,470,552.84-217,321,688.28-86,920,171.92

Finding the Fourth Proportional to 157,470,552.84, 217,321,688.28 and 86,920,171.92

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Solution

The fourth proportional to 157,470,552.84, 217,321,688.28 and 86,920,171.92 is: 119,956,640.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,470,552.84 : 217,321,688.28 = 86,920,171.92 : x
  2. Step 2: Convert to fraction form
    157,470,552.84/217,321,688.28 = 86,920,171.92/x
  3. Step 3: Cross multiply
    157,470,552.84x = 217,321,688.28 × 86,920,171.92
  4. Step 4: Simplify right side
    157,470,552.84x = 18,889,638,507,242,248
  5. Step 5: Solve for x
    x = 18,889,638,507,242,248/157,470,552.84
  6. Step 6: Final answer
    x = 119,956,640.57

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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.