Home / 158,238,695.57-218,366,509.63-87,674,048.40

Finding the Fourth Proportional to 158,238,695.57, 218,366,509.63 and 87,674,048.40

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Solution

The fourth proportional to 158,238,695.57, 218,366,509.63 and 87,674,048.40 is: 120,988,585.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,238,695.57 : 218,366,509.63 = 87,674,048.40 : x
  2. Step 2: Convert to fraction form
    158,238,695.57/218,366,509.63 = 87,674,048.40/x
  3. Step 3: Cross multiply
    158,238,695.57x = 218,366,509.63 × 87,674,048.40
  4. Step 4: Simplify right side
    158,238,695.57x = 19,145,075,934,239,688
  5. Step 5: Solve for x
    x = 19,145,075,934,239,688/158,238,695.57
  6. Step 6: Final answer
    x = 120,988,585.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.