Home / 839,263,459.17-1,158,163,284.45-462,911,964.42

Finding the Fourth Proportional to 839,263,459.17, 1,158,163,284.45 and 462,911,964.42

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Solution

The fourth proportional to 839,263,459.17, 1,158,163,284.45 and 462,911,964.42 is: 638,807,320.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,263,459.17 : 1,158,163,284.45 = 462,911,964.42 : x
  2. Step 2: Convert to fraction form
    839,263,459.17/1,158,163,284.45 = 462,911,964.42/x
  3. Step 3: Cross multiply
    839,263,459.17x = 1,158,163,284.45 × 462,911,964.42
  4. Step 4: Simplify right side
    839,263,459.17x = 536,127,641,129,970,880
  5. Step 5: Solve for x
    x = 536,127,641,129,970,880/839,263,459.17
  6. Step 6: Final answer
    x = 638,807,320.00

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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.