Home / 532,128,438.65-729,003,782.93-512,233,321.52

Finding the Fourth Proportional to 532,128,438.65, 729,003,782.93 and 512,233,321.52

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Solution

The fourth proportional to 532,128,438.65, 729,003,782.93 and 512,233,321.52 is: 701,747,927.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,128,438.65 : 729,003,782.93 = 512,233,321.52 : x
  2. Step 2: Convert to fraction form
    532,128,438.65/729,003,782.93 = 512,233,321.52/x
  3. Step 3: Cross multiply
    532,128,438.65x = 729,003,782.93 × 512,233,321.52
  4. Step 4: Simplify right side
    532,128,438.65x = 373,420,029,130,878,912
  5. Step 5: Solve for x
    x = 373,420,029,130,878,912/532,128,438.65
  6. Step 6: Final answer
    x = 701,747,927.77

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.