Home / 118,115,985.16-163,000,510.14-65,907,221.32

Finding the Fourth Proportional to 118,115,985.16, 163,000,510.14 and 65,907,221.32

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Solution

The fourth proportional to 118,115,985.16, 163,000,510.14 and 65,907,221.32 is: 90,952,216.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,115,985.16 : 163,000,510.14 = 65,907,221.32 : x
  2. Step 2: Convert to fraction form
    118,115,985.16/163,000,510.14 = 65,907,221.32/x
  3. Step 3: Cross multiply
    118,115,985.16x = 163,000,510.14 × 65,907,221.32
  4. Step 4: Simplify right side
    118,115,985.16x = 10,742,910,697,069,884
  5. Step 5: Solve for x
    x = 10,742,910,697,069,884/118,115,985.16
  6. Step 6: Final answer
    x = 90,952,216.86

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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.