Home / 2,985,894,320.40-4,478,674,072.50-915,610,398.84

Finding the Fourth Proportional to 2,985,894,320.40, 4,478,674,072.50 and 915,610,398.84

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Solution

The fourth proportional to 2,985,894,320.40, 4,478,674,072.50 and 915,610,398.84 is: 1,373,364,263.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,985,894,320.40 : 4,478,674,072.50 = 915,610,398.84 : x
  2. Step 2: Convert to fraction form
    2,985,894,320.40/4,478,674,072.50 = 915,610,398.84/x
  3. Step 3: Cross multiply
    2,985,894,320.40x = 4,478,674,072.50 × 915,610,398.84
  4. Step 4: Simplify right side
    2,985,894,320.40x = 4,100,720,553,796,092,416
  5. Step 5: Solve for x
    x = 4,100,720,553,796,092,416/2,985,894,320.40
  6. Step 6: Final answer
    x = 1,373,364,263.36

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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.