Home / 459,011,455.50-688,516,762.53-143,879,750.94

Finding the Fourth Proportional to 459,011,455.50, 688,516,762.53 and 143,879,750.94

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Solution

The fourth proportional to 459,011,455.50, 688,516,762.53 and 143,879,750.94 is: 215,819,494.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,011,455.50 : 688,516,762.53 = 143,879,750.94 : x
  2. Step 2: Convert to fraction form
    459,011,455.50/688,516,762.53 = 143,879,750.94/x
  3. Step 3: Cross multiply
    459,011,455.50x = 688,516,762.53 × 143,879,750.94
  4. Step 4: Simplify right side
    459,011,455.50x = 99,063,620,310,831,520
  5. Step 5: Solve for x
    x = 99,063,620,310,831,520/459,011,455.50
  6. Step 6: Final answer
    x = 215,819,494.53

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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.