Home / 990,528,924.60-1,485,793,386.90-664,011,574.20

Finding the Fourth Proportional to 990,528,924.60, 1,485,793,386.90 and 664,011,574.20

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Solution

The fourth proportional to 990,528,924.60, 1,485,793,386.90 and 664,011,574.20 is: 996,017,361.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,528,924.60 : 1,485,793,386.90 = 664,011,574.20 : x
  2. Step 2: Convert to fraction form
    990,528,924.60/1,485,793,386.90 = 664,011,574.20/x
  3. Step 3: Cross multiply
    990,528,924.60x = 1,485,793,386.90 × 664,011,574.20
  4. Step 4: Simplify right side
    990,528,924.60x = 986,584,005,771,418,752
  5. Step 5: Solve for x
    x = 986,584,005,771,418,752/990,528,924.60
  6. Step 6: Final answer
    x = 996,017,361.30

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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.