Home / 142,533,205.68-196,696,363.32-77,343,109.68

Finding the Fourth Proportional to 142,533,205.68, 196,696,363.32 and 77,343,109.68

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Solution

The fourth proportional to 142,533,205.68, 196,696,363.32 and 77,343,109.68 is: 106,733,784.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,533,205.68 : 196,696,363.32 = 77,343,109.68 : x
  2. Step 2: Convert to fraction form
    142,533,205.68/196,696,363.32 = 77,343,109.68/x
  3. Step 3: Cross multiply
    142,533,205.68x = 196,696,363.32 × 77,343,109.68
  4. Step 4: Simplify right side
    142,533,205.68x = 15,213,108,401,915,890
  5. Step 5: Solve for x
    x = 15,213,108,401,915,890/142,533,205.68
  6. Step 6: Final answer
    x = 106,733,784.10

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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.