Home / 98,643,931.80-147,965,897.70-47,531,117.40

Finding the Fourth Proportional to 98,643,931.80, 147,965,897.70 and 47,531,117.40

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Solution

The fourth proportional to 98,643,931.80, 147,965,897.70 and 47,531,117.40 is: 71,296,676.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,643,931.80 : 147,965,897.70 = 47,531,117.40 : x
  2. Step 2: Convert to fraction form
    98,643,931.80/147,965,897.70 = 47,531,117.40/x
  3. Step 3: Cross multiply
    98,643,931.80x = 147,965,897.70 × 47,531,117.40
  4. Step 4: Simplify right side
    98,643,931.80x = 7,032,984,454,775,089
  5. Step 5: Solve for x
    x = 7,032,984,454,775,089/98,643,931.80
  6. Step 6: Final answer
    x = 71,296,676.10

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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.