Home / 105,219,000.30-157,828,500.45-86,323,320.30

Finding the Fourth Proportional to 105,219,000.30, 157,828,500.45 and 86,323,320.30

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Solution

The fourth proportional to 105,219,000.30, 157,828,500.45 and 86,323,320.30 is: 129,484,980.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,219,000.30 : 157,828,500.45 = 86,323,320.30 : x
  2. Step 2: Convert to fraction form
    105,219,000.30/157,828,500.45 = 86,323,320.30/x
  3. Step 3: Cross multiply
    105,219,000.30x = 157,828,500.45 × 86,323,320.30
  4. Step 4: Simplify right side
    105,219,000.30x = 13,624,280,196,814,042
  5. Step 5: Solve for x
    x = 13,624,280,196,814,042/105,219,000.30
  6. Step 6: Final answer
    x = 129,484,980.45

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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.