Home / 288,260,665.20-432,349,007.40-83,767,417.20

Finding the Fourth Proportional to 288,260,665.20, 432,349,007.40 and 83,767,417.20

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Solution

The fourth proportional to 288,260,665.20, 432,349,007.40 and 83,767,417.20 is: 125,638,923.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,260,665.20 : 432,349,007.40 = 83,767,417.20 : x
  2. Step 2: Convert to fraction form
    288,260,665.20/432,349,007.40 = 83,767,417.20/x
  3. Step 3: Cross multiply
    288,260,665.20x = 432,349,007.40 × 83,767,417.20
  4. Step 4: Simplify right side
    288,260,665.20x = 36,216,759,678,881,688
  5. Step 5: Solve for x
    x = 36,216,759,678,881,688/288,260,665.20
  6. Step 6: Final answer
    x = 125,638,923.55

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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.