Home / 917,740,136.88-1,266,465,443.04-500,055,854.40

Finding the Fourth Proportional to 917,740,136.88, 1,266,465,443.04 and 500,055,854.40

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Solution

The fourth proportional to 917,740,136.88, 1,266,465,443.04 and 500,055,854.40 is: 690,068,390.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,740,136.88 : 1,266,465,443.04 = 500,055,854.40 : x
  2. Step 2: Convert to fraction form
    917,740,136.88/1,266,465,443.04 = 500,055,854.40/x
  3. Step 3: Cross multiply
    917,740,136.88x = 1,266,465,443.04 × 500,055,854.40
  4. Step 4: Simplify right side
    917,740,136.88x = 633,303,459,187,441,664
  5. Step 5: Solve for x
    x = 633,303,459,187,441,664/917,740,136.88
  6. Step 6: Final answer
    x = 690,068,390.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.