Home / 539,136,669.60-808,705,004.40-431,641,245.60

Finding the Fourth Proportional to 539,136,669.60, 808,705,004.40 and 431,641,245.60

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Solution

The fourth proportional to 539,136,669.60, 808,705,004.40 and 431,641,245.60 is: 647,461,868.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,136,669.60 : 808,705,004.40 = 431,641,245.60 : x
  2. Step 2: Convert to fraction form
    539,136,669.60/808,705,004.40 = 431,641,245.60/x
  3. Step 3: Cross multiply
    539,136,669.60x = 808,705,004.40 × 431,641,245.60
  4. Step 4: Simplify right side
    539,136,669.60x = 349,070,435,422,169,472
  5. Step 5: Solve for x
    x = 349,070,435,422,169,472/539,136,669.60
  6. Step 6: Final answer
    x = 647,461,868.40

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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.