Home / 668,889,298.60-1,003,333,947.90-424,001,285.80

Finding the Fourth Proportional to 668,889,298.60, 1,003,333,947.90 and 424,001,285.80

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Solution

The fourth proportional to 668,889,298.60, 1,003,333,947.90 and 424,001,285.80 is: 636,001,928.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,889,298.60 : 1,003,333,947.90 = 424,001,285.80 : x
  2. Step 2: Convert to fraction form
    668,889,298.60/1,003,333,947.90 = 424,001,285.80/x
  3. Step 3: Cross multiply
    668,889,298.60x = 1,003,333,947.90 × 424,001,285.80
  4. Step 4: Simplify right side
    668,889,298.60x = 425,414,883,996,390,208
  5. Step 5: Solve for x
    x = 425,414,883,996,390,208/668,889,298.60
  6. Step 6: Final answer
    x = 636,001,928.70

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1.5x scale

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.