Home / 152,160,406.16-209,963,645.56-85,183,031.86

Finding the Fourth Proportional to 152,160,406.16, 209,963,645.56 and 85,183,031.86

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Solution

The fourth proportional to 152,160,406.16, 209,963,645.56 and 85,183,031.86 is: 117,542,666.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,160,406.16 : 209,963,645.56 = 85,183,031.86 : x
  2. Step 2: Convert to fraction form
    152,160,406.16/209,963,645.56 = 85,183,031.86/x
  3. Step 3: Cross multiply
    152,160,406.16x = 209,963,645.56 × 85,183,031.86
  4. Step 4: Simplify right side
    152,160,406.16x = 17,885,339,909,179,228
  5. Step 5: Solve for x
    x = 17,885,339,909,179,228/152,160,406.16
  6. Step 6: Final answer
    x = 117,542,666.72

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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.