Home / 139,028,673.20-208,543,009.80-106,843,031.60

Finding the Fourth Proportional to 139,028,673.20, 208,543,009.80 and 106,843,031.60

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Solution

The fourth proportional to 139,028,673.20, 208,543,009.80 and 106,843,031.60 is: 160,264,547.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,028,673.20 : 208,543,009.80 = 106,843,031.60 : x
  2. Step 2: Convert to fraction form
    139,028,673.20/208,543,009.80 = 106,843,031.60/x
  3. Step 3: Cross multiply
    139,028,673.20x = 208,543,009.80 × 106,843,031.60
  4. Step 4: Simplify right side
    139,028,673.20x = 22,281,367,386,020,508
  5. Step 5: Solve for x
    x = 22,281,367,386,020,508/139,028,673.20
  6. Step 6: Final answer
    x = 160,264,547.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.