Home / 679,113,117.60-1,018,669,676.40-242,622,909.60

Finding the Fourth Proportional to 679,113,117.60, 1,018,669,676.40 and 242,622,909.60

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Solution

The fourth proportional to 679,113,117.60, 1,018,669,676.40 and 242,622,909.60 is: 363,934,364.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,113,117.60 : 1,018,669,676.40 = 242,622,909.60 : x
  2. Step 2: Convert to fraction form
    679,113,117.60/1,018,669,676.40 = 242,622,909.60/x
  3. Step 3: Cross multiply
    679,113,117.60x = 1,018,669,676.40 × 242,622,909.60
  4. Step 4: Simplify right side
    679,113,117.60x = 247,152,600,809,458,432
  5. Step 5: Solve for x
    x = 247,152,600,809,458,432/679,113,117.60
  6. Step 6: Final answer
    x = 363,934,364.40

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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.