Home / 1,275,950,628.60-1,913,925,942.90-457,956,641.40

Finding the Fourth Proportional to 1,275,950,628.60, 1,913,925,942.90 and 457,956,641.40

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Solution

The fourth proportional to 1,275,950,628.60, 1,913,925,942.90 and 457,956,641.40 is: 686,934,962.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,950,628.60 : 1,913,925,942.90 = 457,956,641.40 : x
  2. Step 2: Convert to fraction form
    1,275,950,628.60/1,913,925,942.90 = 457,956,641.40/x
  3. Step 3: Cross multiply
    1,275,950,628.60x = 1,913,925,942.90 × 457,956,641.40
  4. Step 4: Simplify right side
    1,275,950,628.60x = 876,495,096,698,812,160
  5. Step 5: Solve for x
    x = 876,495,096,698,812,160/1,275,950,628.60
  6. Step 6: Final answer
    x = 686,934,962.10

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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.