Home / 190,463,999.60-285,695,999.40-99,615,436.40

Finding the Fourth Proportional to 190,463,999.60, 285,695,999.40 and 99,615,436.40

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Solution

The fourth proportional to 190,463,999.60, 285,695,999.40 and 99,615,436.40 is: 149,423,154.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,463,999.60 : 285,695,999.40 = 99,615,436.40 : x
  2. Step 2: Convert to fraction form
    190,463,999.60/285,695,999.40 = 99,615,436.40/x
  3. Step 3: Cross multiply
    190,463,999.60x = 285,695,999.40 × 99,615,436.40
  4. Step 4: Simplify right side
    190,463,999.60x = 28,459,731,657,965,136
  5. Step 5: Solve for x
    x = 28,459,731,657,965,136/190,463,999.60
  6. Step 6: Final answer
    x = 149,423,154.60

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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.