Home / 1,383,142,688.72-1,908,782,437.11-756,596,778.56

Finding the Fourth Proportional to 1,383,142,688.72, 1,908,782,437.11 and 756,596,778.56

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Solution

The fourth proportional to 1,383,142,688.72, 1,908,782,437.11 and 756,596,778.56 is: 1,044,128,458.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,142,688.72 : 1,908,782,437.11 = 756,596,778.56 : x
  2. Step 2: Convert to fraction form
    1,383,142,688.72/1,908,782,437.11 = 756,596,778.56/x
  3. Step 3: Cross multiply
    1,383,142,688.72x = 1,908,782,437.11 × 756,596,778.56
  4. Step 4: Simplify right side
    1,383,142,688.72x = 1,444,178,642,889,331,712
  5. Step 5: Solve for x
    x = 1,444,178,642,889,331,712/1,383,142,688.72
  6. Step 6: Final answer
    x = 1,044,128,458.09

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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.