Home / 747,492,047.80-1,121,238,071.70-359,221,253.20

Finding the Fourth Proportional to 747,492,047.80, 1,121,238,071.70 and 359,221,253.20

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Solution

The fourth proportional to 747,492,047.80, 1,121,238,071.70 and 359,221,253.20 is: 538,831,879.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,492,047.80 : 1,121,238,071.70 = 359,221,253.20 : x
  2. Step 2: Convert to fraction form
    747,492,047.80/1,121,238,071.70 = 359,221,253.20/x
  3. Step 3: Cross multiply
    747,492,047.80x = 1,121,238,071.70 × 359,221,253.20
  4. Step 4: Simplify right side
    747,492,047.80x = 402,772,545,251,625,472
  5. Step 5: Solve for x
    x = 402,772,545,251,625,472/747,492,047.80
  6. Step 6: Final answer
    x = 538,831,879.80

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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.