Home / 745,564,202.49-1,118,507,737.16-285,502,388.21

Finding the Fourth Proportional to 745,564,202.49, 1,118,507,737.16 and 285,502,388.21

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Solution

The fourth proportional to 745,564,202.49, 1,118,507,737.16 and 285,502,388.21 is: 428,315,400.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,564,202.49 : 1,118,507,737.16 = 285,502,388.21 : x
  2. Step 2: Convert to fraction form
    745,564,202.49/1,118,507,737.16 = 285,502,388.21/x
  3. Step 3: Cross multiply
    745,564,202.49x = 1,118,507,737.16 × 285,502,388.21
  4. Step 4: Simplify right side
    745,564,202.49x = 319,336,630,185,664,128
  5. Step 5: Solve for x
    x = 319,336,630,185,664,128/745,564,202.49
  6. Step 6: Final answer
    x = 428,315,400.77

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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.