Home / 100,031,970.96-149,893,002.02-69,386,130.45

Finding the Fourth Proportional to 100,031,970.96, 149,893,002.02 and 69,386,130.45

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Solution

The fourth proportional to 100,031,970.96, 149,893,002.02 and 69,386,130.45 is: 103,971,713.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,031,970.96 : 149,893,002.02 = 69,386,130.45 : x
  2. Step 2: Convert to fraction form
    100,031,970.96/149,893,002.02 = 69,386,130.45/x
  3. Step 3: Cross multiply
    100,031,970.96x = 149,893,002.02 × 69,386,130.45
  4. Step 4: Simplify right side
    100,031,970.96x = 10,400,495,391,875,300
  5. Step 5: Solve for x
    x = 10,400,495,391,875,300/100,031,970.96
  6. Step 6: Final answer
    x = 103,971,713.16

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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.