Home / 85,472,030.10-128,208,045.15-53,621,534.10

Finding the Fourth Proportional to 85,472,030.10, 128,208,045.15 and 53,621,534.10

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Solution

The fourth proportional to 85,472,030.10, 128,208,045.15 and 53,621,534.10 is: 80,432,301.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,472,030.10 : 128,208,045.15 = 53,621,534.10 : x
  2. Step 2: Convert to fraction form
    85,472,030.10/128,208,045.15 = 53,621,534.10/x
  3. Step 3: Cross multiply
    85,472,030.10x = 128,208,045.15 × 53,621,534.10
  4. Step 4: Simplify right side
    85,472,030.10x = 6,874,712,064,905,065
  5. Step 5: Solve for x
    x = 6,874,712,064,905,065/85,472,030.10
  6. Step 6: Final answer
    x = 80,432,301.15

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1.5x scale

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.