Home / 778,368,947.32-1,075,315,861.08-511,078,924.90

Finding the Fourth Proportional to 778,368,947.32, 1,075,315,861.08 and 511,078,924.90

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Solution

The fourth proportional to 778,368,947.32, 1,075,315,861.08 and 511,078,924.90 is: 706,054,983.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,368,947.32 : 1,075,315,861.08 = 511,078,924.90 : x
  2. Step 2: Convert to fraction form
    778,368,947.32/1,075,315,861.08 = 511,078,924.90/x
  3. Step 3: Cross multiply
    778,368,947.32x = 1,075,315,861.08 × 511,078,924.90
  4. Step 4: Simplify right side
    778,368,947.32x = 549,571,274,208,684,096
  5. Step 5: Solve for x
    x = 549,571,274,208,684,096/778,368,947.32
  6. Step 6: Final answer
    x = 706,054,983.44

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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.