Home / 779,288,472.63-1,075,417,752.42-422,056,265.67

Finding the Fourth Proportional to 779,288,472.63, 1,075,417,752.42 and 422,056,265.67

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Solution

The fourth proportional to 779,288,472.63, 1,075,417,752.42 and 422,056,265.67 is: 582,437,462.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,288,472.63 : 1,075,417,752.42 = 422,056,265.67 : x
  2. Step 2: Convert to fraction form
    779,288,472.63/1,075,417,752.42 = 422,056,265.67/x
  3. Step 3: Cross multiply
    779,288,472.63x = 1,075,417,752.42 × 422,056,265.67
  4. Step 4: Simplify right side
    779,288,472.63x = 453,886,800,621,609,856
  5. Step 5: Solve for x
    x = 453,886,800,621,609,856/779,288,472.63
  6. Step 6: Final answer
    x = 582,437,462.59

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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.