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Finding the Fourth Proportional to 291,357,079.80, 437,035,619.70 and 289,656,468.60

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Solution

The fourth proportional to 291,357,079.80, 437,035,619.70 and 289,656,468.60 is: 434,484,702.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,357,079.80 : 437,035,619.70 = 289,656,468.60 : x
  2. Step 2: Convert to fraction form
    291,357,079.80/437,035,619.70 = 289,656,468.60/x
  3. Step 3: Cross multiply
    291,357,079.80x = 437,035,619.70 × 289,656,468.60
  4. Step 4: Simplify right side
    291,357,079.80x = 126,590,194,254,714,592
  5. Step 5: Solve for x
    x = 126,590,194,254,714,592/291,357,079.80
  6. Step 6: Final answer
    x = 434,484,702.90

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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.