Home / 291,076,643.56-401,683,688.40-158,917,635.76

Finding the Fourth Proportional to 291,076,643.56, 401,683,688.40 and 158,917,635.76

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Solution

The fourth proportional to 291,076,643.56, 401,683,688.40 and 158,917,635.76 is: 219,305,201.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,076,643.56 : 401,683,688.40 = 158,917,635.76 : x
  2. Step 2: Convert to fraction form
    291,076,643.56/401,683,688.40 = 158,917,635.76/x
  3. Step 3: Cross multiply
    291,076,643.56x = 401,683,688.40 × 158,917,635.76
  4. Step 4: Simplify right side
    291,076,643.56x = 63,834,622,083,884,528
  5. Step 5: Solve for x
    x = 63,834,622,083,884,528/291,076,643.56
  6. Step 6: Final answer
    x = 219,305,201.90

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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.