Home / 991,006,315.20-1,486,509,472.80-344,774,059.20

Finding the Fourth Proportional to 991,006,315.20, 1,486,509,472.80 and 344,774,059.20

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Solution

The fourth proportional to 991,006,315.20, 1,486,509,472.80 and 344,774,059.20 is: 517,161,088.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,006,315.20 : 1,486,509,472.80 = 344,774,059.20 : x
  2. Step 2: Convert to fraction form
    991,006,315.20/1,486,509,472.80 = 344,774,059.20/x
  3. Step 3: Cross multiply
    991,006,315.20x = 1,486,509,472.80 × 344,774,059.20
  4. Step 4: Simplify right side
    991,006,315.20x = 512,509,904,976,507,968
  5. Step 5: Solve for x
    x = 512,509,904,976,507,968/991,006,315.20
  6. Step 6: Final answer
    x = 517,161,088.80

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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.