Home / 1,429,046,811.72-2,143,332,463.27-432,830,986.66

Finding the Fourth Proportional to 1,429,046,811.72, 2,143,332,463.27 and 432,830,986.66

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Solution

The fourth proportional to 1,429,046,811.72, 2,143,332,463.27 and 432,830,986.66 is: 649,174,468.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,429,046,811.72 : 2,143,332,463.27 = 432,830,986.66 : x
  2. Step 2: Convert to fraction form
    1,429,046,811.72/2,143,332,463.27 = 432,830,986.66/x
  3. Step 3: Cross multiply
    1,429,046,811.72x = 2,143,332,463.27 × 432,830,986.66
  4. Step 4: Simplify right side
    1,429,046,811.72x = 927,700,704,817,562,368
  5. Step 5: Solve for x
    x = 927,700,704,817,562,368/1,429,046,811.72
  6. Step 6: Final answer
    x = 649,174,468.75

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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.