Home / 870,916,534.77-1,306,563,969.46-318,218,075.20

Finding the Fourth Proportional to 870,916,534.77, 1,306,563,969.46 and 318,218,075.20

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Solution

The fourth proportional to 870,916,534.77, 1,306,563,969.46 and 318,218,075.20 is: 477,396,231.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,916,534.77 : 1,306,563,969.46 = 318,218,075.20 : x
  2. Step 2: Convert to fraction form
    870,916,534.77/1,306,563,969.46 = 318,218,075.20/x
  3. Step 3: Cross multiply
    870,916,534.77x = 1,306,563,969.46 × 318,218,075.20
  4. Step 4: Simplify right side
    870,916,534.77x = 415,772,271,487,232,768
  5. Step 5: Solve for x
    x = 415,772,271,487,232,768/870,916,534.77
  6. Step 6: Final answer
    x = 477,396,231.31

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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.