Finding the Fourth Proportional to 1,125,484,126.84, 1,553,254,259.36 and 708,154,138.36
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Solution
The fourth proportional to 1,125,484,126.84, 1,553,254,259.36 and 708,154,138.36 is: 977,306,925.49
Step by Step Solution
- Step 1: Write the proportion equation
1,125,484,126.84 : 1,553,254,259.36 = 708,154,138.36 : x - Step 2: Convert to fraction form
1,125,484,126.84/1,553,254,259.36 = 708,154,138.36/x - Step 3: Cross multiply
1,125,484,126.84x = 1,553,254,259.36 × 708,154,138.36 - Step 4: Simplify right side
1,125,484,126.84x = 1,099,943,431,691,080,704 - Step 5: Solve for x
x = 1,099,943,431,691,080,704/1,125,484,126.84 - Step 6: Final answer
x = 977,306,925.49
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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.