Home / 138,673,125.60-208,009,688.40-104,408,959.20

Finding the Fourth Proportional to 138,673,125.60, 208,009,688.40 and 104,408,959.20

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Solution

The fourth proportional to 138,673,125.60, 208,009,688.40 and 104,408,959.20 is: 156,613,438.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,673,125.60 : 208,009,688.40 = 104,408,959.20 : x
  2. Step 2: Convert to fraction form
    138,673,125.60/208,009,688.40 = 104,408,959.20/x
  3. Step 3: Cross multiply
    138,673,125.60x = 208,009,688.40 × 104,408,959.20
  4. Step 4: Simplify right side
    138,673,125.60x = 21,718,075,069,360,316
  5. Step 5: Solve for x
    x = 21,718,075,069,360,316/138,673,125.60
  6. Step 6: Final answer
    x = 156,613,438.80

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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.