Home / 161,697,006.90-242,556,007.95-85,169,502.90

Finding the Fourth Proportional to 161,697,006.90, 242,556,007.95 and 85,169,502.90

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Solution

The fourth proportional to 161,697,006.90, 242,556,007.95 and 85,169,502.90 is: 127,759,783.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,697,006.90 : 242,556,007.95 = 85,169,502.90 : x
  2. Step 2: Convert to fraction form
    161,697,006.90/242,556,007.95 = 85,169,502.90/x
  3. Step 3: Cross multiply
    161,697,006.90x = 242,556,007.95 × 85,169,502.90
  4. Step 4: Simplify right side
    161,697,006.90x = 20,658,374,622,509,948
  5. Step 5: Solve for x
    x = 20,658,374,622,509,948/161,697,006.90
  6. Step 6: Final answer
    x = 127,759,783.68

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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.