Home / 1,429,046,587.72-2,143,332,127.44-432,830,762.54

Finding the Fourth Proportional to 1,429,046,587.72, 2,143,332,127.44 and 432,830,762.54

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Solution

The fourth proportional to 1,429,046,587.72, 2,143,332,127.44 and 432,830,762.54 is: 649,174,132.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,429,046,587.72 : 2,143,332,127.44 = 432,830,762.54 : x
  2. Step 2: Convert to fraction form
    1,429,046,587.72/2,143,332,127.44 = 432,830,762.54/x
  3. Step 3: Cross multiply
    1,429,046,587.72x = 2,143,332,127.44 × 432,830,762.54
  4. Step 4: Simplify right side
    1,429,046,587.72x = 927,700,079,090,977,408
  5. Step 5: Solve for x
    x = 927,700,079,090,977,408/1,429,046,587.72
  6. Step 6: Final answer
    x = 649,174,132.64

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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.