Home / 156,006,393.60-234,009,590.40-79,478,889.60

Finding the Fourth Proportional to 156,006,393.60, 234,009,590.40 and 79,478,889.60

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Solution

The fourth proportional to 156,006,393.60, 234,009,590.40 and 79,478,889.60 is: 119,218,334.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,006,393.60 : 234,009,590.40 = 79,478,889.60 : x
  2. Step 2: Convert to fraction form
    156,006,393.60/234,009,590.40 = 79,478,889.60/x
  3. Step 3: Cross multiply
    156,006,393.60x = 234,009,590.40 × 79,478,889.60
  4. Step 4: Simplify right side
    156,006,393.60x = 18,598,822,400,742,820
  5. Step 5: Solve for x
    x = 18,598,822,400,742,820/156,006,393.60
  6. Step 6: Final answer
    x = 119,218,334.40

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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.