Home / 528,399,670.19-729,208,225.47-316,636,707.07

Finding the Fourth Proportional to 528,399,670.19, 729,208,225.47 and 316,636,707.07

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Solution

The fourth proportional to 528,399,670.19, 729,208,225.47 and 316,636,707.07 is: 436,968,651.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,399,670.19 : 729,208,225.47 = 316,636,707.07 : x
  2. Step 2: Convert to fraction form
    528,399,670.19/729,208,225.47 = 316,636,707.07/x
  3. Step 3: Cross multiply
    528,399,670.19x = 729,208,225.47 × 316,636,707.07
  4. Step 4: Simplify right side
    528,399,670.19x = 230,894,091,277,390,656
  5. Step 5: Solve for x
    x = 230,894,091,277,390,656/528,399,670.19
  6. Step 6: Final answer
    x = 436,968,651.39

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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.