Home / 528,829,798.55-729,015,973.28-369,565,449.89

Finding the Fourth Proportional to 528,829,798.55, 729,015,973.28 and 369,565,449.89

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Solution

The fourth proportional to 528,829,798.55, 729,015,973.28 and 369,565,449.89 is: 509,462,811.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,829,798.55 : 729,015,973.28 = 369,565,449.89 : x
  2. Step 2: Convert to fraction form
    528,829,798.55/729,015,973.28 = 369,565,449.89/x
  3. Step 3: Cross multiply
    528,829,798.55x = 729,015,973.28 × 369,565,449.89
  4. Step 4: Simplify right side
    528,829,798.55x = 269,419,116,138,574,336
  5. Step 5: Solve for x
    x = 269,419,116,138,574,336/528,829,798.55
  6. Step 6: Final answer
    x = 509,462,811.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.