Home / 217,249,041.70-299,801,608.73-118,129,856.41

Finding the Fourth Proportional to 217,249,041.70, 299,801,608.73 and 118,129,856.41

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Solution

The fourth proportional to 217,249,041.70, 299,801,608.73 and 118,129,856.41 is: 163,018,076.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,249,041.70 : 299,801,608.73 = 118,129,856.41 : x
  2. Step 2: Convert to fraction form
    217,249,041.70/299,801,608.73 = 118,129,856.41/x
  3. Step 3: Cross multiply
    217,249,041.70x = 299,801,608.73 × 118,129,856.41
  4. Step 4: Simplify right side
    217,249,041.70x = 35,415,520,989,262,896
  5. Step 5: Solve for x
    x = 35,415,520,989,262,896/217,249,041.70
  6. Step 6: Final answer
    x = 163,018,076.92

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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.