Home / 1,139,243,970.24-1,572,187,592.64-644,280,696

Finding the Fourth Proportional to 1,139,243,970.24, 1,572,187,592.64 and 644,280,696

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Solution

The fourth proportional to 1,139,243,970.24, 1,572,187,592.64 and 644,280,696 is: 889,124,843.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,243,970.24 : 1,572,187,592.64 = 644,280,696 : x
  2. Step 2: Convert to fraction form
    1,139,243,970.24/1,572,187,592.64 = 644,280,696/x
  3. Step 3: Cross multiply
    1,139,243,970.24x = 1,572,187,592.64 × 644,280,696
  4. Step 4: Simplify right side
    1,139,243,970.24x = 1,012,930,116,428,663,808
  5. Step 5: Solve for x
    x = 1,012,930,116,428,663,808/1,139,243,970.24
  6. Step 6: Final answer
    x = 889,124,843.22

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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.