Home / 210,925,512.51-291,178,141.34-140,478,357.84

Finding the Fourth Proportional to 210,925,512.51, 291,178,141.34 and 140,478,357.84

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Solution

The fourth proportional to 210,925,512.51, 291,178,141.34 and 140,478,357.84 is: 193,927,356.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,925,512.51 : 291,178,141.34 = 140,478,357.84 : x
  2. Step 2: Convert to fraction form
    210,925,512.51/291,178,141.34 = 140,478,357.84/x
  3. Step 3: Cross multiply
    210,925,512.51x = 291,178,141.34 × 140,478,357.84
  4. Step 4: Simplify right side
    210,925,512.51x = 40,904,227,133,644,224
  5. Step 5: Solve for x
    x = 40,904,227,133,644,224/210,925,512.51
  6. Step 6: Final answer
    x = 193,927,356.85

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1.5x scale

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.