Home / 85,937,681.18-118,368,087.35-66,053,421.69

Finding the Fourth Proportional to 85,937,681.18, 118,368,087.35 and 66,053,421.69

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Solution

The fourth proportional to 85,937,681.18, 118,368,087.35 and 66,053,421.69 is: 90,980,080.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,937,681.18 : 118,368,087.35 = 66,053,421.69 : x
  2. Step 2: Convert to fraction form
    85,937,681.18/118,368,087.35 = 66,053,421.69/x
  3. Step 3: Cross multiply
    85,937,681.18x = 118,368,087.35 × 66,053,421.69
  4. Step 4: Simplify right side
    85,937,681.18x = 7,818,617,188,038,037
  5. Step 5: Solve for x
    x = 7,818,617,188,038,037/85,937,681.18
  6. Step 6: Final answer
    x = 90,980,080.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.