Home / 645,596,191.32-891,197,646.44-434,025,725.08

Finding the Fourth Proportional to 645,596,191.32, 891,197,646.44 and 434,025,725.08

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Solution

The fourth proportional to 645,596,191.32, 891,197,646.44 and 434,025,725.08 is: 599,140,313.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,596,191.32 : 891,197,646.44 = 434,025,725.08 : x
  2. Step 2: Convert to fraction form
    645,596,191.32/891,197,646.44 = 434,025,725.08/x
  3. Step 3: Cross multiply
    645,596,191.32x = 891,197,646.44 × 434,025,725.08
  4. Step 4: Simplify right side
    645,596,191.32x = 386,802,704,685,710,464
  5. Step 5: Solve for x
    x = 386,802,704,685,710,464/645,596,191.32
  6. Step 6: Final answer
    x = 599,140,313.85

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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.