Home / 809,502,749.64-1,117,114,155.18-438,224,769

Finding the Fourth Proportional to 809,502,749.64, 1,117,114,155.18 and 438,224,769

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Solution

The fourth proportional to 809,502,749.64, 1,117,114,155.18 and 438,224,769 is: 604,750,376.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,502,749.64 : 1,117,114,155.18 = 438,224,769 : x
  2. Step 2: Convert to fraction form
    809,502,749.64/1,117,114,155.18 = 438,224,769/x
  3. Step 3: Cross multiply
    809,502,749.64x = 1,117,114,155.18 × 438,224,769
  4. Step 4: Simplify right side
    809,502,749.64x = 489,547,092,600,385,664
  5. Step 5: Solve for x
    x = 489,547,092,600,385,664/809,502,749.64
  6. Step 6: Final answer
    x = 604,750,376.47

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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.