Home / 420,056,031.60-630,084,047.40-113,347,652.40

Finding the Fourth Proportional to 420,056,031.60, 630,084,047.40 and 113,347,652.40

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Solution

The fourth proportional to 420,056,031.60, 630,084,047.40 and 113,347,652.40 is: 170,021,478.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,056,031.60 : 630,084,047.40 = 113,347,652.40 : x
  2. Step 2: Convert to fraction form
    420,056,031.60/630,084,047.40 = 113,347,652.40/x
  3. Step 3: Cross multiply
    420,056,031.60x = 630,084,047.40 × 113,347,652.40
  4. Step 4: Simplify right side
    420,056,031.60x = 71,418,547,587,480,328
  5. Step 5: Solve for x
    x = 71,418,547,587,480,328/420,056,031.60
  6. Step 6: Final answer
    x = 170,021,478.60

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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.