Home / 519,048,468.90-778,572,703.35-155,495,585.70

Finding the Fourth Proportional to 519,048,468.90, 778,572,703.35 and 155,495,585.70

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Solution

The fourth proportional to 519,048,468.90, 778,572,703.35 and 155,495,585.70 is: 233,243,378.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,048,468.90 : 778,572,703.35 = 155,495,585.70 : x
  2. Step 2: Convert to fraction form
    519,048,468.90/778,572,703.35 = 155,495,585.70/x
  3. Step 3: Cross multiply
    519,048,468.90x = 778,572,703.35 × 155,495,585.70
  4. Step 4: Simplify right side
    519,048,468.90x = 121,064,618,517,440,592
  5. Step 5: Solve for x
    x = 121,064,618,517,440,592/519,048,468.90
  6. Step 6: Final answer
    x = 233,243,378.55

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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.