Home / 145,158,271.20-217,737,406.80-99,808,639.20

Finding the Fourth Proportional to 145,158,271.20, 217,737,406.80 and 99,808,639.20

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Solution

The fourth proportional to 145,158,271.20, 217,737,406.80 and 99,808,639.20 is: 149,712,958.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,158,271.20 : 217,737,406.80 = 99,808,639.20 : x
  2. Step 2: Convert to fraction form
    145,158,271.20/217,737,406.80 = 99,808,639.20/x
  3. Step 3: Cross multiply
    145,158,271.20x = 217,737,406.80 × 99,808,639.20
  4. Step 4: Simplify right side
    145,158,271.20x = 21,732,074,275,644,828
  5. Step 5: Solve for x
    x = 21,732,074,275,644,828/145,158,271.20
  6. Step 6: Final answer
    x = 149,712,958.80

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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.