Home / 656,718,835.32-983,114,346.42-397,148,490.36

Finding the Fourth Proportional to 656,718,835.32, 983,114,346.42 and 397,148,490.36

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Solution

The fourth proportional to 656,718,835.32, 983,114,346.42 and 397,148,490.36 is: 594,535,069.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,718,835.32 : 983,114,346.42 = 397,148,490.36 : x
  2. Step 2: Convert to fraction form
    656,718,835.32/983,114,346.42 = 397,148,490.36/x
  3. Step 3: Cross multiply
    656,718,835.32x = 983,114,346.42 × 397,148,490.36
  4. Step 4: Simplify right side
    656,718,835.32x = 390,442,378,531,961,088
  5. Step 5: Solve for x
    x = 390,442,378,531,961,088/656,718,835.32
  6. Step 6: Final answer
    x = 594,535,069.70

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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.