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Finding the Fourth Proportional to 1,195,689,978.68, 1,648,586,220.03 and 983,254,421.48

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Solution

The fourth proportional to 1,195,689,978.68, 1,648,586,220.03 and 983,254,421.48 is: 1,355,685,603.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,195,689,978.68 : 1,648,586,220.03 = 983,254,421.48 : x
  2. Step 2: Convert to fraction form
    1,195,689,978.68/1,648,586,220.03 = 983,254,421.48/x
  3. Step 3: Cross multiply
    1,195,689,978.68x = 1,648,586,220.03 × 983,254,421.48
  4. Step 4: Simplify right side
    1,195,689,978.68x = 1,620,979,690,027,254,784
  5. Step 5: Solve for x
    x = 1,620,979,690,027,254,784/1,195,689,978.68
  6. Step 6: Final answer
    x = 1,355,685,603.24

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.