Home / 727,914,519.60-1,091,871,779.40-319,767,831.60

Finding the Fourth Proportional to 727,914,519.60, 1,091,871,779.40 and 319,767,831.60

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Solution

The fourth proportional to 727,914,519.60, 1,091,871,779.40 and 319,767,831.60 is: 479,651,747.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,914,519.60 : 1,091,871,779.40 = 319,767,831.60 : x
  2. Step 2: Convert to fraction form
    727,914,519.60/1,091,871,779.40 = 319,767,831.60/x
  3. Step 3: Cross multiply
    727,914,519.60x = 1,091,871,779.40 × 319,767,831.60
  4. Step 4: Simplify right side
    727,914,519.60x = 349,145,471,283,971,584
  5. Step 5: Solve for x
    x = 349,145,471,283,971,584/727,914,519.60
  6. Step 6: Final answer
    x = 479,651,747.40

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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.