Home / 86,935,206.70-130,402,810.05-77,865,280.30

Finding the Fourth Proportional to 86,935,206.70, 130,402,810.05 and 77,865,280.30

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Solution

The fourth proportional to 86,935,206.70, 130,402,810.05 and 77,865,280.30 is: 116,797,920.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,935,206.70 : 130,402,810.05 = 77,865,280.30 : x
  2. Step 2: Convert to fraction form
    86,935,206.70/130,402,810.05 = 77,865,280.30/x
  3. Step 3: Cross multiply
    86,935,206.70x = 130,402,810.05 × 77,865,280.30
  4. Step 4: Simplify right side
    86,935,206.70x = 10,153,851,356,450,906
  5. Step 5: Solve for x
    x = 10,153,851,356,450,906/86,935,206.70
  6. Step 6: Final answer
    x = 116,797,920.45

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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.