Home / 163,385,999.40-245,078,999.10-145,529,581.80

Finding the Fourth Proportional to 163,385,999.40, 245,078,999.10 and 145,529,581.80

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Solution

The fourth proportional to 163,385,999.40, 245,078,999.10 and 145,529,581.80 is: 218,294,372.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,385,999.40 : 245,078,999.10 = 145,529,581.80 : x
  2. Step 2: Convert to fraction form
    163,385,999.40/245,078,999.10 = 145,529,581.80/x
  3. Step 3: Cross multiply
    163,385,999.40x = 245,078,999.10 × 145,529,581.80
  4. Step 4: Simplify right side
    163,385,999.40x = 35,666,244,246,985,580
  5. Step 5: Solve for x
    x = 35,666,244,246,985,580/163,385,999.40
  6. Step 6: Final answer
    x = 218,294,372.70

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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.