Home / 157,169,219.40-235,753,829.10-80,641,715.40

Finding the Fourth Proportional to 157,169,219.40, 235,753,829.10 and 80,641,715.40

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Solution

The fourth proportional to 157,169,219.40, 235,753,829.10 and 80,641,715.40 is: 120,962,573.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,169,219.40 : 235,753,829.10 = 80,641,715.40 : x
  2. Step 2: Convert to fraction form
    157,169,219.40/235,753,829.10 = 80,641,715.40/x
  3. Step 3: Cross multiply
    157,169,219.40x = 235,753,829.10 × 80,641,715.40
  4. Step 4: Simplify right side
    157,169,219.40x = 19,011,593,190,742,440
  5. Step 5: Solve for x
    x = 19,011,593,190,742,440/157,169,219.40
  6. Step 6: Final answer
    x = 120,962,573.10

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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.