Home / 390,889,425.78-586,333,642.95-99,756,555.01

Finding the Fourth Proportional to 390,889,425.78, 586,333,642.95 and 99,756,555.01

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Solution

The fourth proportional to 390,889,425.78, 586,333,642.95 and 99,756,555.01 is: 149,634,706.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,889,425.78 : 586,333,642.95 = 99,756,555.01 : x
  2. Step 2: Convert to fraction form
    390,889,425.78/586,333,642.95 = 99,756,555.01/x
  3. Step 3: Cross multiply
    390,889,425.78x = 586,333,642.95 × 99,756,555.01
  4. Step 4: Simplify right side
    390,889,425.78x = 58,490,624,305,689,544
  5. Step 5: Solve for x
    x = 58,490,624,305,689,544/390,889,425.78
  6. Step 6: Final answer
    x = 149,634,706.00

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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.