Home / 666,009,212.83-918,881,421.90-387,496,927.96

Finding the Fourth Proportional to 666,009,212.83, 918,881,421.90 and 387,496,927.96

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Solution

The fourth proportional to 666,009,212.83, 918,881,421.90 and 387,496,927.96 is: 534,622,826.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,009,212.83 : 918,881,421.90 = 387,496,927.96 : x
  2. Step 2: Convert to fraction form
    666,009,212.83/918,881,421.90 = 387,496,927.96/x
  3. Step 3: Cross multiply
    666,009,212.83x = 918,881,421.90 × 387,496,927.96
  4. Step 4: Simplify right side
    666,009,212.83x = 356,063,728,145,766,656
  5. Step 5: Solve for x
    x = 356,063,728,145,766,656/666,009,212.83
  6. Step 6: Final answer
    x = 534,622,826.96

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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.