Home / 843,785,749.71-1,164,828,070.98-561,997,137.15

Finding the Fourth Proportional to 843,785,749.71, 1,164,828,070.98 and 561,997,137.15

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Solution

The fourth proportional to 843,785,749.71, 1,164,828,070.98 and 561,997,137.15 is: 775,824,954.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    843,785,749.71 : 1,164,828,070.98 = 561,997,137.15 : x
  2. Step 2: Convert to fraction form
    843,785,749.71/1,164,828,070.98 = 561,997,137.15/x
  3. Step 3: Cross multiply
    843,785,749.71x = 1,164,828,070.98 × 561,997,137.15
  4. Step 4: Simplify right side
    843,785,749.71x = 654,630,041,162,716,928
  5. Step 5: Solve for x
    x = 654,630,041,162,716,928/843,785,749.71
  6. Step 6: Final answer
    x = 775,824,954.84

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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.