Home / 145,787,907-201,191,510.70-80,602,010.04

Finding the Fourth Proportional to 145,787,907, 201,191,510.70 and 80,602,010.04

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Solution

The fourth proportional to 145,787,907, 201,191,510.70 and 80,602,010.04 is: 111,233,095.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,787,907 : 201,191,510.70 = 80,602,010.04 : x
  2. Step 2: Convert to fraction form
    145,787,907/201,191,510.70 = 80,602,010.04/x
  3. Step 3: Cross multiply
    145,787,907x = 201,191,510.70 × 80,602,010.04
  4. Step 4: Simplify right side
    145,787,907x = 16,216,440,165,404,168
  5. Step 5: Solve for x
    x = 16,216,440,165,404,168/145,787,907
  6. Step 6: Final answer
    x = 111,233,095.39

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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.