Home / 778,534,733.05-1,074,262,362.10-472,848,690.49

Finding the Fourth Proportional to 778,534,733.05, 1,074,262,362.10 and 472,848,690.49

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Solution

The fourth proportional to 778,534,733.05, 1,074,262,362.10 and 472,848,690.49 is: 652,461,000.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,534,733.05 : 1,074,262,362.10 = 472,848,690.49 : x
  2. Step 2: Convert to fraction form
    778,534,733.05/1,074,262,362.10 = 472,848,690.49/x
  3. Step 3: Cross multiply
    778,534,733.05x = 1,074,262,362.10 × 472,848,690.49
  4. Step 4: Simplify right side
    778,534,733.05x = 507,963,551,161,679,168
  5. Step 5: Solve for x
    x = 507,963,551,161,679,168/778,534,733.05
  6. Step 6: Final answer
    x = 652,461,000.90

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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.