Home / 977,887,939.80-1,466,831,909.70-322,940,051.40

Finding the Fourth Proportional to 977,887,939.80, 1,466,831,909.70 and 322,940,051.40

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Solution

The fourth proportional to 977,887,939.80, 1,466,831,909.70 and 322,940,051.40 is: 484,410,077.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,887,939.80 : 1,466,831,909.70 = 322,940,051.40 : x
  2. Step 2: Convert to fraction form
    977,887,939.80/1,466,831,909.70 = 322,940,051.40/x
  3. Step 3: Cross multiply
    977,887,939.80x = 1,466,831,909.70 × 322,940,051.40
  4. Step 4: Simplify right side
    977,887,939.80x = 473,698,772,313,678,144
  5. Step 5: Solve for x
    x = 473,698,772,313,678,144/977,887,939.80
  6. Step 6: Final answer
    x = 484,410,077.10

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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.