Home / 142,436,028.34-213,898,547.10-87,426,882.61

Finding the Fourth Proportional to 142,436,028.34, 213,898,547.10 and 87,426,882.61

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Solution

The fourth proportional to 142,436,028.34, 213,898,547.10 and 87,426,882.61 is: 131,290,400.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,436,028.34 : 213,898,547.10 = 87,426,882.61 : x
  2. Step 2: Convert to fraction form
    142,436,028.34/213,898,547.10 = 87,426,882.61/x
  3. Step 3: Cross multiply
    142,436,028.34x = 213,898,547.10 × 87,426,882.61
  4. Step 4: Simplify right side
    142,436,028.34x = 18,700,483,168,881,776
  5. Step 5: Solve for x
    x = 18,700,483,168,881,776/142,436,028.34
  6. Step 6: Final answer
    x = 131,290,400.24

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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.