Home / 163,892,054.60-245,767,223.10-81,979,281.80

Finding the Fourth Proportional to 163,892,054.60, 245,767,223.10 and 81,979,281.80

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Solution

The fourth proportional to 163,892,054.60, 245,767,223.10 and 81,979,281.80 is: 122,933,478.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,892,054.60 : 245,767,223.10 = 81,979,281.80 : x
  2. Step 2: Convert to fraction form
    163,892,054.60/245,767,223.10 = 81,979,281.80/x
  3. Step 3: Cross multiply
    163,892,054.60x = 245,767,223.10 × 81,979,281.80
  4. Step 4: Simplify right side
    163,892,054.60x = 20,147,820,439,718,368
  5. Step 5: Solve for x
    x = 20,147,820,439,718,368/163,892,054.60
  6. Step 6: Final answer
    x = 122,933,478.92

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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.