Home / 514,565,630,367.80-711,119,408,714.20-421,720,043,595.15

Finding the Fourth Proportional to 514,565,630,367.80, 711,119,408,714.20 and 421,720,043,595.15

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Solution

The fourth proportional to 514,565,630,367.80, 711,119,408,714.20 and 421,720,043,595.15 is: 582,808,664,912.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,565,630,367.80 : 711,119,408,714.20 = 421,720,043,595.15 : x
  2. Step 2: Convert to fraction form
    514,565,630,367.80/711,119,408,714.20 = 421,720,043,595.15/x
  3. Step 3: Cross multiply
    514,565,630,367.80x = 711,119,408,714.20 × 421,720,043,595.15
  4. Step 4: Simplify right side
    514,565,630,367.80x = 299,893,308,044,309,709,193,216
  5. Step 5: Solve for x
    x = 299,893,308,044,309,709,193,216/514,565,630,367.80
  6. Step 6: Final answer
    x = 582,808,664,912.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.