Home / 688,687,511.76-1,033,254,341.64-412,295,501.52

Finding the Fourth Proportional to 688,687,511.76, 1,033,254,341.64 and 412,295,501.52

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Solution

The fourth proportional to 688,687,511.76, 1,033,254,341.64 and 412,295,501.52 is: 618,576,799.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,687,511.76 : 1,033,254,341.64 = 412,295,501.52 : x
  2. Step 2: Convert to fraction form
    688,687,511.76/1,033,254,341.64 = 412,295,501.52/x
  3. Step 3: Cross multiply
    688,687,511.76x = 1,033,254,341.64 × 412,295,501.52
  4. Step 4: Simplify right side
    688,687,511.76x = 426,006,116,984,181,184
  5. Step 5: Solve for x
    x = 426,006,116,984,181,184/688,687,511.76
  6. Step 6: Final answer
    x = 618,576,799.65

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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.