Home / 100,776,455.81-139,062,642.90-56,119,053.39

Finding the Fourth Proportional to 100,776,455.81, 139,062,642.90 and 56,119,053.39

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Solution

The fourth proportional to 100,776,455.81, 139,062,642.90 and 56,119,053.39 is: 77,439,356.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,776,455.81 : 139,062,642.90 = 56,119,053.39 : x
  2. Step 2: Convert to fraction form
    100,776,455.81/139,062,642.90 = 56,119,053.39/x
  3. Step 3: Cross multiply
    100,776,455.81x = 139,062,642.90 × 56,119,053.39
  4. Step 4: Simplify right side
    100,776,455.81x = 7,804,063,881,459,605
  5. Step 5: Solve for x
    x = 7,804,063,881,459,605/100,776,455.81
  6. Step 6: Final answer
    x = 77,439,356.44

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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.