Home / 1,385,323,043.40-1,911,722,172.89-750,238,388.40

Finding the Fourth Proportional to 1,385,323,043.40, 1,911,722,172.89 and 750,238,388.40

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Solution

The fourth proportional to 1,385,323,043.40, 1,911,722,172.89 and 750,238,388.40 is: 1,035,316,180.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,323,043.40 : 1,911,722,172.89 = 750,238,388.40 : x
  2. Step 2: Convert to fraction form
    1,385,323,043.40/1,911,722,172.89 = 750,238,388.40/x
  3. Step 3: Cross multiply
    1,385,323,043.40x = 1,911,722,172.89 × 750,238,388.40
  4. Step 4: Simplify right side
    1,385,323,043.40x = 1,434,247,362,060,957,440
  5. Step 5: Solve for x
    x = 1,434,247,362,060,957,440/1,385,323,043.40
  6. Step 6: Final answer
    x = 1,035,316,180.51

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1.5x scale

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.