Home / 190,125,182.40-285,154,061.40-86,470,107.72

Finding the Fourth Proportional to 190,125,182.40, 285,154,061.40 and 86,470,107.72

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Solution

The fourth proportional to 190,125,182.40, 285,154,061.40 and 86,470,107.72 is: 129,689,829.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,125,182.40 : 285,154,061.40 = 86,470,107.72 : x
  2. Step 2: Convert to fraction form
    190,125,182.40/285,154,061.40 = 86,470,107.72/x
  3. Step 3: Cross multiply
    190,125,182.40x = 285,154,061.40 × 86,470,107.72
  4. Step 4: Simplify right side
    190,125,182.40x = 24,657,302,406,053,492
  5. Step 5: Solve for x
    x = 24,657,302,406,053,492/190,125,182.40
  6. Step 6: Final answer
    x = 129,689,829.06

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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.