Home / 289,842,646.06-399,984,590.93-157,684,588.40

Finding the Fourth Proportional to 289,842,646.06, 399,984,590.93 and 157,684,588.40

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Solution

The fourth proportional to 289,842,646.06, 399,984,590.93 and 157,684,588.40 is: 217,605,678.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,842,646.06 : 399,984,590.93 = 157,684,588.40 : x
  2. Step 2: Convert to fraction form
    289,842,646.06/399,984,590.93 = 157,684,588.40/x
  3. Step 3: Cross multiply
    289,842,646.06x = 399,984,590.93 × 157,684,588.40
  4. Step 4: Simplify right side
    289,842,646.06x = 63,071,405,587,139,424
  5. Step 5: Solve for x
    x = 63,071,405,587,139,424/289,842,646.06
  6. Step 6: Final answer
    x = 217,605,678.27

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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.