Home / 156,686,456.40-235,106,926.20-70,485,867.60

Finding the Fourth Proportional to 156,686,456.40, 235,106,926.20 and 70,485,867.60

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Solution

The fourth proportional to 156,686,456.40, 235,106,926.20 and 70,485,867.60 is: 105,763,548.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,686,456.40 : 235,106,926.20 = 70,485,867.60 : x
  2. Step 2: Convert to fraction form
    156,686,456.40/235,106,926.20 = 70,485,867.60/x
  3. Step 3: Cross multiply
    156,686,456.40x = 235,106,926.20 × 70,485,867.60
  4. Step 4: Simplify right side
    156,686,456.40x = 16,571,715,671,976,168
  5. Step 5: Solve for x
    x = 16,571,715,671,976,168/156,686,456.40
  6. Step 6: Final answer
    x = 105,763,548.76

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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.