Home / 720,217,582.13-993,887,307.60-406,945,070.05

Finding the Fourth Proportional to 720,217,582.13, 993,887,307.60 and 406,945,070.05

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Solution

The fourth proportional to 720,217,582.13, 993,887,307.60 and 406,945,070.05 is: 561,576,876.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,217,582.13 : 993,887,307.60 = 406,945,070.05 : x
  2. Step 2: Convert to fraction form
    720,217,582.13/993,887,307.60 = 406,945,070.05/x
  3. Step 3: Cross multiply
    720,217,582.13x = 993,887,307.60 × 406,945,070.05
  4. Step 4: Simplify right side
    720,217,582.13x = 404,457,540,013,087,936
  5. Step 5: Solve for x
    x = 404,457,540,013,087,936/720,217,582.13
  6. Step 6: Final answer
    x = 561,576,876.28

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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.