Home / 314,929,543.60-472,394,315.40-291,971,292.40

Finding the Fourth Proportional to 314,929,543.60, 472,394,315.40 and 291,971,292.40

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Solution

The fourth proportional to 314,929,543.60, 472,394,315.40 and 291,971,292.40 is: 437,956,938.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,929,543.60 : 472,394,315.40 = 291,971,292.40 : x
  2. Step 2: Convert to fraction form
    314,929,543.60/472,394,315.40 = 291,971,292.40/x
  3. Step 3: Cross multiply
    314,929,543.60x = 472,394,315.40 × 291,971,292.40
  4. Step 4: Simplify right side
    314,929,543.60x = 137,925,578,789,751,200
  5. Step 5: Solve for x
    x = 137,925,578,789,751,200/314,929,543.60
  6. Step 6: Final answer
    x = 437,956,938.60

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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.