Home / 914,223,037.32-1,261,636,896.42-496,543,478.76

Finding the Fourth Proportional to 914,223,037.32, 1,261,636,896.42 and 496,543,478.76

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Solution

The fourth proportional to 914,223,037.32, 1,261,636,896.42 and 496,543,478.76 is: 685,234,945.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    914,223,037.32 : 1,261,636,896.42 = 496,543,478.76 : x
  2. Step 2: Convert to fraction form
    914,223,037.32/1,261,636,896.42 = 496,543,478.76/x
  3. Step 3: Cross multiply
    914,223,037.32x = 1,261,636,896.42 × 496,543,478.76
  4. Step 4: Simplify right side
    914,223,037.32x = 626,457,573,480,356,608
  5. Step 5: Solve for x
    x = 626,457,573,480,356,608/914,223,037.32
  6. Step 6: Final answer
    x = 685,234,945.86

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Double scale
Find fourth proportional to 914,223,038.32, 1,261,636,897.80 and 496,543,479.76
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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.