Finding the Fourth Proportional to 1,125,484,122.84, 1,553,254,253.82 and 708,154,134.36
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Solution
The fourth proportional to 1,125,484,122.84, 1,553,254,253.82 and 708,154,134.36 is: 977,306,919.96
Step by Step Solution
- Step 1: Write the proportion equation
1,125,484,122.84 : 1,553,254,253.82 = 708,154,134.36 : x - Step 2: Convert to fraction form
1,125,484,122.84/1,553,254,253.82 = 708,154,134.36/x - Step 3: Cross multiply
1,125,484,122.84x = 1,553,254,253.82 × 708,154,134.36 - Step 4: Simplify right side
1,125,484,122.84x = 1,099,943,421,554,889,856 - Step 5: Solve for x
x = 1,099,943,421,554,889,856/1,125,484,122.84 - Step 6: Final answer
x = 977,306,919.96
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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.