Home / 828,159,124.40-1,242,238,686.60-637,056,148.40

Finding the Fourth Proportional to 828,159,124.40, 1,242,238,686.60 and 637,056,148.40

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Solution

The fourth proportional to 828,159,124.40, 1,242,238,686.60 and 637,056,148.40 is: 955,584,222.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,159,124.40 : 1,242,238,686.60 = 637,056,148.40 : x
  2. Step 2: Convert to fraction form
    828,159,124.40/1,242,238,686.60 = 637,056,148.40/x
  3. Step 3: Cross multiply
    828,159,124.40x = 1,242,238,686.60 × 637,056,148.40
  4. Step 4: Simplify right side
    828,159,124.40x = 791,375,793,078,870,656
  5. Step 5: Solve for x
    x = 791,375,793,078,870,656/828,159,124.40
  6. Step 6: Final answer
    x = 955,584,222.60

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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.