Home / 122,112,000.30-183,168,000.45-86,280,192.30

Finding the Fourth Proportional to 122,112,000.30, 183,168,000.45 and 86,280,192.30

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Solution

The fourth proportional to 122,112,000.30, 183,168,000.45 and 86,280,192.30 is: 129,420,288.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,112,000.30 : 183,168,000.45 = 86,280,192.30 : x
  2. Step 2: Convert to fraction form
    122,112,000.30/183,168,000.45 = 86,280,192.30/x
  3. Step 3: Cross multiply
    122,112,000.30x = 183,168,000.45 × 86,280,192.30
  4. Step 4: Simplify right side
    122,112,000.30x = 15,803,770,302,032,484
  5. Step 5: Solve for x
    x = 15,803,770,302,032,484/122,112,000.30
  6. Step 6: Final answer
    x = 129,420,288.45

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1.5x scale

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.