Home / 459,011,445.82-688,516,748.08-143,879,741.30

Finding the Fourth Proportional to 459,011,445.82, 688,516,748.08 and 143,879,741.30

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Solution

The fourth proportional to 459,011,445.82, 688,516,748.08 and 143,879,741.30 is: 215,819,480.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,011,445.82 : 688,516,748.08 = 143,879,741.30 : x
  2. Step 2: Convert to fraction form
    459,011,445.82/688,516,748.08 = 143,879,741.30/x
  3. Step 3: Cross multiply
    459,011,445.82x = 688,516,748.08 × 143,879,741.30
  4. Step 4: Simplify right side
    459,011,445.82x = 99,063,611,594,467,680
  5. Step 5: Solve for x
    x = 99,063,611,594,467,680/459,011,445.82
  6. Step 6: Final answer
    x = 215,819,480.09

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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.