Home / 385,881,383.30-578,820,929.72-109,532,831.40

Finding the Fourth Proportional to 385,881,383.30, 578,820,929.72 and 109,532,831.40

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Solution

The fourth proportional to 385,881,383.30, 578,820,929.72 and 109,532,831.40 is: 164,298,922.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,881,383.30 : 578,820,929.72 = 109,532,831.40 : x
  2. Step 2: Convert to fraction form
    385,881,383.30/578,820,929.72 = 109,532,831.40/x
  3. Step 3: Cross multiply
    385,881,383.30x = 578,820,929.72 × 109,532,831.40
  4. Step 4: Simplify right side
    385,881,383.30x = 63,399,895,305,264,352
  5. Step 5: Solve for x
    x = 63,399,895,305,264,352/385,881,383.30
  6. Step 6: Final answer
    x = 164,298,922.03

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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.