Home / 451,686,412.80-677,529,619.20-442,616,486.40

Finding the Fourth Proportional to 451,686,412.80, 677,529,619.20 and 442,616,486.40

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Solution

The fourth proportional to 451,686,412.80, 677,529,619.20 and 442,616,486.40 is: 663,924,729.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,686,412.80 : 677,529,619.20 = 442,616,486.40 : x
  2. Step 2: Convert to fraction form
    451,686,412.80/677,529,619.20 = 442,616,486.40/x
  3. Step 3: Cross multiply
    451,686,412.80x = 677,529,619.20 × 442,616,486.40
  4. Step 4: Simplify right side
    451,686,412.80x = 299,885,779,482,233,984
  5. Step 5: Solve for x
    x = 299,885,779,482,233,984/451,686,412.80
  6. Step 6: Final answer
    x = 663,924,729.60

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1.5x scale

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.