Home / 977,900,605.47-1,349,853,858.51-581,422,649.15

Finding the Fourth Proportional to 977,900,605.47, 1,349,853,858.51 and 581,422,649.15

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Solution

The fourth proportional to 977,900,605.47, 1,349,853,858.51 and 581,422,649.15 is: 802,571,960.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,900,605.47 : 1,349,853,858.51 = 581,422,649.15 : x
  2. Step 2: Convert to fraction form
    977,900,605.47/1,349,853,858.51 = 581,422,649.15/x
  3. Step 3: Cross multiply
    977,900,605.47x = 1,349,853,858.51 × 581,422,649.15
  4. Step 4: Simplify right side
    977,900,605.47x = 784,835,606,380,233,472
  5. Step 5: Solve for x
    x = 784,835,606,380,233,472/977,900,605.47
  6. Step 6: Final answer
    x = 802,571,960.78

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1.5x scale

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.