Home / 98,415,715.40-147,623,573.10-72,906,547.40

Finding the Fourth Proportional to 98,415,715.40, 147,623,573.10 and 72,906,547.40

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Solution

The fourth proportional to 98,415,715.40, 147,623,573.10 and 72,906,547.40 is: 109,359,821.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,415,715.40 : 147,623,573.10 = 72,906,547.40 : x
  2. Step 2: Convert to fraction form
    98,415,715.40/147,623,573.10 = 72,906,547.40/x
  3. Step 3: Cross multiply
    98,415,715.40x = 147,623,573.10 × 72,906,547.40
  4. Step 4: Simplify right side
    98,415,715.40x = 10,762,725,029,572,516
  5. Step 5: Solve for x
    x = 10,762,725,029,572,516/98,415,715.40
  6. Step 6: Final answer
    x = 109,359,821.10

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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.