Home / 145,162,881.40-217,744,322.10-99,178,727.80

Finding the Fourth Proportional to 145,162,881.40, 217,744,322.10 and 99,178,727.80

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Solution

The fourth proportional to 145,162,881.40, 217,744,322.10 and 99,178,727.80 is: 148,768,091.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,162,881.40 : 217,744,322.10 = 99,178,727.80 : x
  2. Step 2: Convert to fraction form
    145,162,881.40/217,744,322.10 = 99,178,727.80/x
  3. Step 3: Cross multiply
    145,162,881.40x = 217,744,322.10 × 99,178,727.80
  4. Step 4: Simplify right side
    145,162,881.40x = 21,595,604,851,551,424
  5. Step 5: Solve for x
    x = 21,595,604,851,551,424/145,162,881.40
  6. Step 6: Final answer
    x = 148,768,091.70

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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.