Home / 739,262,738.16-1,020,190,640.78-409,243,388.40

Finding the Fourth Proportional to 739,262,738.16, 1,020,190,640.78 and 409,243,388.40

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Solution

The fourth proportional to 739,262,738.16, 1,020,190,640.78 and 409,243,388.40 is: 564,760,339.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,262,738.16 : 1,020,190,640.78 = 409,243,388.40 : x
  2. Step 2: Convert to fraction form
    739,262,738.16/1,020,190,640.78 = 409,243,388.40/x
  3. Step 3: Cross multiply
    739,262,738.16x = 1,020,190,640.78 × 409,243,388.40
  4. Step 4: Simplify right side
    739,262,738.16x = 417,506,274,646,774,400
  5. Step 5: Solve for x
    x = 417,506,274,646,774,400/739,262,738.16
  6. Step 6: Final answer
    x = 564,760,339.05

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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.