Home / 977,640,638.80-1,468,161,569.40-518,475,614.80

Finding the Fourth Proportional to 977,640,638.80, 1,468,161,569.40 and 518,475,614.80

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Solution

The fourth proportional to 977,640,638.80, 1,468,161,569.40 and 518,475,614.80 is: 778,615,313.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,640,638.80 : 1,468,161,569.40 = 518,475,614.80 : x
  2. Step 2: Convert to fraction form
    977,640,638.80/1,468,161,569.40 = 518,475,614.80/x
  3. Step 3: Cross multiply
    977,640,638.80x = 1,468,161,569.40 × 518,475,614.80
  4. Step 4: Simplify right side
    977,640,638.80x = 761,205,972,320,397,952
  5. Step 5: Solve for x
    x = 761,205,972,320,397,952/977,640,638.80
  6. Step 6: Final answer
    x = 778,615,313.35

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1.5x scale

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.