Home / 315,440,909.52-473,266,483.80-198,721,515.04

Finding the Fourth Proportional to 315,440,909.52, 473,266,483.80 and 198,721,515.04

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Solution

The fourth proportional to 315,440,909.52, 473,266,483.80 and 198,721,515.04 is: 298,148,495.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,440,909.52 : 473,266,483.80 = 198,721,515.04 : x
  2. Step 2: Convert to fraction form
    315,440,909.52/473,266,483.80 = 198,721,515.04/x
  3. Step 3: Cross multiply
    315,440,909.52x = 473,266,483.80 × 198,721,515.04
  4. Step 4: Simplify right side
    315,440,909.52x = 94,048,232,676,461,232
  5. Step 5: Solve for x
    x = 94,048,232,676,461,232/315,440,909.52
  6. Step 6: Final answer
    x = 298,148,495.77

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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.