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Finding the Fourth Proportional to 709,038,989.10, 978,637,063.62 and 415,778,035.50

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Solution

The fourth proportional to 709,038,989.10, 978,637,063.62 and 415,778,035.50 is: 573,869,423.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,038,989.10 : 978,637,063.62 = 415,778,035.50 : x
  2. Step 2: Convert to fraction form
    709,038,989.10/978,637,063.62 = 415,778,035.50/x
  3. Step 3: Cross multiply
    709,038,989.10x = 978,637,063.62 × 415,778,035.50
  4. Step 4: Simplify right side
    709,038,989.10x = 406,895,795,779,412,096
  5. Step 5: Solve for x
    x = 406,895,795,779,412,096/709,038,989.10
  6. Step 6: Final answer
    x = 573,869,423.31

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Why These Related Problems?

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