Home / 971,453,690.10-1,457,090,189.78-272,009,132.91

Finding the Fourth Proportional to 971,453,690.10, 1,457,090,189.78 and 272,009,132.91

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Solution

The fourth proportional to 971,453,690.10, 1,457,090,189.78 and 272,009,132.91 is: 407,988,402.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,453,690.10 : 1,457,090,189.78 = 272,009,132.91 : x
  2. Step 2: Convert to fraction form
    971,453,690.10/1,457,090,189.78 = 272,009,132.91/x
  3. Step 3: Cross multiply
    971,453,690.10x = 1,457,090,189.78 × 272,009,132.91
  4. Step 4: Simplify right side
    971,453,690.10x = 396,341,839,092,365,184
  5. Step 5: Solve for x
    x = 396,341,839,092,365,184/971,453,690.10
  6. Step 6: Final answer
    x = 407,988,402.46

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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.