Home / 458,136,014.80-686,196,252.60-407,075,688.40

Finding the Fourth Proportional to 458,136,014.80, 686,196,252.60 and 407,075,688.40

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Solution

The fourth proportional to 458,136,014.80, 686,196,252.60 and 407,075,688.40 is: 609,718,081.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,136,014.80 : 686,196,252.60 = 407,075,688.40 : x
  2. Step 2: Convert to fraction form
    458,136,014.80/686,196,252.60 = 407,075,688.40/x
  3. Step 3: Cross multiply
    458,136,014.80x = 686,196,252.60 × 407,075,688.40
  4. Step 4: Simplify right side
    458,136,014.80x = 279,333,811,904,645,280
  5. Step 5: Solve for x
    x = 279,333,811,904,645,280/458,136,014.80
  6. Step 6: Final answer
    x = 609,718,081.27

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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.