Home / 553,281,129.65-763,528,702.94-318,327,077.75

Finding the Fourth Proportional to 553,281,129.65, 763,528,702.94 and 318,327,077.75

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Solution

The fourth proportional to 553,281,129.65, 763,528,702.94 and 318,327,077.75 is: 439,291,795.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,281,129.65 : 763,528,702.94 = 318,327,077.75 : x
  2. Step 2: Convert to fraction form
    553,281,129.65/763,528,702.94 = 318,327,077.75/x
  3. Step 3: Cross multiply
    553,281,129.65x = 763,528,702.94 × 318,327,077.75
  4. Step 4: Simplify right side
    553,281,129.65x = 243,051,860,779,728,736
  5. Step 5: Solve for x
    x = 243,051,860,779,728,736/553,281,129.65
  6. Step 6: Final answer
    x = 439,291,795.36

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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.