Home / 912,969,967.35-1,368,602,981.94-360,276,972.54

Finding the Fourth Proportional to 912,969,967.35, 1,368,602,981.94 and 360,276,972.54

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Solution

The fourth proportional to 912,969,967.35, 1,368,602,981.94 and 360,276,972.54 is: 540,079,254.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,969,967.35 : 1,368,602,981.94 = 360,276,972.54 : x
  2. Step 2: Convert to fraction form
    912,969,967.35/1,368,602,981.94 = 360,276,972.54/x
  3. Step 3: Cross multiply
    912,969,967.35x = 1,368,602,981.94 × 360,276,972.54
  4. Step 4: Simplify right side
    912,969,967.35x = 493,076,138,942,559,552
  5. Step 5: Solve for x
    x = 493,076,138,942,559,552/912,969,967.35
  6. Step 6: Final answer
    x = 540,079,254.06

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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.