Home / 313,380,657.51-432,009,515.12-219,001,785.45

Finding the Fourth Proportional to 313,380,657.51, 432,009,515.12 and 219,001,785.45

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Solution

The fourth proportional to 313,380,657.51, 432,009,515.12 and 219,001,785.45 is: 301,903,939.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,380,657.51 : 432,009,515.12 = 219,001,785.45 : x
  2. Step 2: Convert to fraction form
    313,380,657.51/432,009,515.12 = 219,001,785.45/x
  3. Step 3: Cross multiply
    313,380,657.51x = 432,009,515.12 × 219,001,785.45
  4. Step 4: Simplify right side
    313,380,657.51x = 94,610,855,141,573,760
  5. Step 5: Solve for x
    x = 94,610,855,141,573,760/313,380,657.51
  6. Step 6: Final answer
    x = 301,903,939.74

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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.