Home / 809,145,869.40-1,116,621,303.72-437,867,904.48

Finding the Fourth Proportional to 809,145,869.40, 1,116,621,303.72 and 437,867,904.48

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Solution

The fourth proportional to 809,145,869.40, 1,116,621,303.72 and 437,867,904.48 is: 604,257,710.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,145,869.40 : 1,116,621,303.72 = 437,867,904.48 : x
  2. Step 2: Convert to fraction form
    809,145,869.40/1,116,621,303.72 = 437,867,904.48/x
  3. Step 3: Cross multiply
    809,145,869.40x = 1,116,621,303.72 × 437,867,904.48
  4. Step 4: Simplify right side
    809,145,869.40x = 488,932,630,357,602,048
  5. Step 5: Solve for x
    x = 488,932,630,357,602,048/809,145,869.40
  6. Step 6: Final answer
    x = 604,257,710.32

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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.