Home / 528,399,670.69-729,208,226.16-316,636,707.57

Finding the Fourth Proportional to 528,399,670.69, 729,208,226.16 and 316,636,707.57

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Solution

The fourth proportional to 528,399,670.69, 729,208,226.16 and 316,636,707.57 is: 436,968,652.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,399,670.69 : 729,208,226.16 = 316,636,707.57 : x
  2. Step 2: Convert to fraction form
    528,399,670.69/729,208,226.16 = 316,636,707.57/x
  3. Step 3: Cross multiply
    528,399,670.69x = 729,208,226.16 × 316,636,707.57
  4. Step 4: Simplify right side
    528,399,670.69x = 230,894,091,860,616,288
  5. Step 5: Solve for x
    x = 230,894,091,860,616,288/528,399,670.69
  6. Step 6: Final answer
    x = 436,968,652.08

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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.