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Finding the Fourth Proportional to 647,891,406.40, 971,837,109.60 and 598,006,811.20

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Solution

The fourth proportional to 647,891,406.40, 971,837,109.60 and 598,006,811.20 is: 897,010,216.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,891,406.40 : 971,837,109.60 = 598,006,811.20 : x
  2. Step 2: Convert to fraction form
    647,891,406.40/971,837,109.60 = 598,006,811.20/x
  3. Step 3: Cross multiply
    647,891,406.40x = 971,837,109.60 × 598,006,811.20
  4. Step 4: Simplify right side
    647,891,406.40x = 581,165,210,917,720,960
  5. Step 5: Solve for x
    x = 581,165,210,917,720,960/647,891,406.40
  6. Step 6: Final answer
    x = 897,010,216.80

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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.