Home / 425,937,388,677.40-638,945,359,448.20-139,096,948,491.16

Finding the Fourth Proportional to 425,937,388,677.40, 638,945,359,448.20 and 139,096,948,491.16

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Solution

The fourth proportional to 425,937,388,677.40, 638,945,359,448.20 and 139,096,948,491.16 is: 208,658,249,109.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,937,388,677.40 : 638,945,359,448.20 = 139,096,948,491.16 : x
  2. Step 2: Convert to fraction form
    425,937,388,677.40/638,945,359,448.20 = 139,096,948,491.16/x
  3. Step 3: Cross multiply
    425,937,388,677.40x = 638,945,359,448.20 × 139,096,948,491.16
  4. Step 4: Simplify right side
    425,937,388,677.40x = 88,875,349,751,831,988,273,152
  5. Step 5: Solve for x
    x = 88,875,349,751,831,988,273,152/425,937,388,677.40
  6. Step 6: Final answer
    x = 208,658,249,109.81

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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.