Home / 190,678,978.90-286,021,125.65-54,364,362.40

Finding the Fourth Proportional to 190,678,978.90, 286,021,125.65 and 54,364,362.40

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Solution

The fourth proportional to 190,678,978.90, 286,021,125.65 and 54,364,362.40 is: 81,547,301.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,678,978.90 : 286,021,125.65 = 54,364,362.40 : x
  2. Step 2: Convert to fraction form
    190,678,978.90/286,021,125.65 = 54,364,362.40/x
  3. Step 3: Cross multiply
    190,678,978.90x = 286,021,125.65 × 54,364,362.40
  4. Step 4: Simplify right side
    190,678,978.90x = 15,549,356,128,892,534
  5. Step 5: Solve for x
    x = 15,549,356,128,892,534/190,678,978.90
  6. Step 6: Final answer
    x = 81,547,301.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.