Home / 507,940,297.29-761,828,836.82-139,389,156.81

Finding the Fourth Proportional to 507,940,297.29, 761,828,836.82 and 139,389,156.81

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Solution

The fourth proportional to 507,940,297.29, 761,828,836.82 and 139,389,156.81 is: 209,061,340.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,940,297.29 : 761,828,836.82 = 139,389,156.81 : x
  2. Step 2: Convert to fraction form
    507,940,297.29/761,828,836.82 = 139,389,156.81/x
  3. Step 3: Cross multiply
    507,940,297.29x = 761,828,836.82 × 139,389,156.81
  4. Step 4: Simplify right side
    507,940,297.29x = 106,190,679,197,185,952
  5. Step 5: Solve for x
    x = 106,190,679,197,185,952/507,940,297.29
  6. Step 6: Final answer
    x = 209,061,340.01

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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.