Home / 163,733,999.40-245,600,999.10-81,865,513.35

Finding the Fourth Proportional to 163,733,999.40, 245,600,999.10 and 81,865,513.35

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Solution

The fourth proportional to 163,733,999.40, 245,600,999.10 and 81,865,513.35 is: 122,798,270.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,733,999.40 : 245,600,999.10 = 81,865,513.35 : x
  2. Step 2: Convert to fraction form
    163,733,999.40/245,600,999.10 = 81,865,513.35/x
  3. Step 3: Cross multiply
    163,733,999.40x = 245,600,999.10 × 81,865,513.35
  4. Step 4: Simplify right side
    163,733,999.40x = 20,106,251,870,594,388
  5. Step 5: Solve for x
    x = 20,106,251,870,594,388/163,733,999.40
  6. Step 6: Final answer
    x = 122,798,270.03

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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.