Home / 977,412,659.10-1,466,118,988.65-287,389,664.70

Finding the Fourth Proportional to 977,412,659.10, 1,466,118,988.65 and 287,389,664.70

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Solution

The fourth proportional to 977,412,659.10, 1,466,118,988.65 and 287,389,664.70 is: 431,084,497.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,412,659.10 : 1,466,118,988.65 = 287,389,664.70 : x
  2. Step 2: Convert to fraction form
    977,412,659.10/1,466,118,988.65 = 287,389,664.70/x
  3. Step 3: Cross multiply
    977,412,659.10x = 1,466,118,988.65 × 287,389,664.70
  4. Step 4: Simplify right side
    977,412,659.10x = 421,347,444,558,426,624
  5. Step 5: Solve for x
    x = 421,347,444,558,426,624/977,412,659.10
  6. Step 6: Final answer
    x = 431,084,497.05

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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.