Home / 121,130,518.80-181,695,778.20-70,112,182.80

Finding the Fourth Proportional to 121,130,518.80, 181,695,778.20 and 70,112,182.80

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Solution

The fourth proportional to 121,130,518.80, 181,695,778.20 and 70,112,182.80 is: 105,168,274.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,130,518.80 : 181,695,778.20 = 70,112,182.80 : x
  2. Step 2: Convert to fraction form
    121,130,518.80/181,695,778.20 = 70,112,182.80/x
  3. Step 3: Cross multiply
    121,130,518.80x = 181,695,778.20 × 70,112,182.80
  4. Step 4: Simplify right side
    121,130,518.80x = 12,739,087,615,146,654
  5. Step 5: Solve for x
    x = 12,739,087,615,146,654/121,130,518.80
  6. Step 6: Final answer
    x = 105,168,274.20

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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.