Home / 1,124,968,908.51-1,687,440,765.65-397,787,559.39

Finding the Fourth Proportional to 1,124,968,908.51, 1,687,440,765.65 and 397,787,559.39

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Solution

The fourth proportional to 1,124,968,908.51, 1,687,440,765.65 and 397,787,559.39 is: 596,676,884.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,124,968,908.51 : 1,687,440,765.65 = 397,787,559.39 : x
  2. Step 2: Convert to fraction form
    1,124,968,908.51/1,687,440,765.65 = 397,787,559.39/x
  3. Step 3: Cross multiply
    1,124,968,908.51x = 1,687,440,765.65 × 397,787,559.39
  4. Step 4: Simplify right side
    1,124,968,908.51x = 671,242,943,781,117,440
  5. Step 5: Solve for x
    x = 671,242,943,781,117,440/1,124,968,908.51
  6. Step 6: Final answer
    x = 596,676,884.76

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Double scale
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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.