Home / 493,675,475.40-681,341,559.93-305,564,106.42

Finding the Fourth Proportional to 493,675,475.40, 681,341,559.93 and 305,564,106.42

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Solution

The fourth proportional to 493,675,475.40, 681,341,559.93 and 305,564,106.42 is: 421,721,424.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,675,475.40 : 681,341,559.93 = 305,564,106.42 : x
  2. Step 2: Convert to fraction form
    493,675,475.40/681,341,559.93 = 305,564,106.42/x
  3. Step 3: Cross multiply
    493,675,475.40x = 681,341,559.93 × 305,564,106.42
  4. Step 4: Simplify right side
    493,675,475.40x = 208,193,524,926,819,328
  5. Step 5: Solve for x
    x = 208,193,524,926,819,328/493,675,475.40
  6. Step 6: Final answer
    x = 421,721,424.91

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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.