Home / 228,427,780,671.60-342,641,671,007.40-212,948,439,615.60

Finding the Fourth Proportional to 228,427,780,671.60, 342,641,671,007.40 and 212,948,439,615.60

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Solution

The fourth proportional to 228,427,780,671.60, 342,641,671,007.40 and 212,948,439,615.60 is: 319,422,659,423.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,427,780,671.60 : 342,641,671,007.40 = 212,948,439,615.60 : x
  2. Step 2: Convert to fraction form
    228,427,780,671.60/342,641,671,007.40 = 212,948,439,615.60/x
  3. Step 3: Cross multiply
    228,427,780,671.60x = 342,641,671,007.40 × 212,948,439,615.60
  4. Step 4: Simplify right side
    228,427,780,671.60x = 72,965,009,188,307,607,748,608
  5. Step 5: Solve for x
    x = 72,965,009,188,307,607,748,608/228,427,780,671.60
  6. Step 6: Final answer
    x = 319,422,659,423.40

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1.5x scale

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.