Finding the Fourth Proportional to 570,523,455.24, 787,341,831.18 and 319,638,425.88
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Solution
The fourth proportional to 570,523,455.24, 787,341,831.18 and 319,638,425.88 is: 441,111,931.92
Step by Step Solution
- Step 1: Write the proportion equation
570,523,455.24 : 787,341,831.18 = 319,638,425.88 : x - Step 2: Convert to fraction form
570,523,455.24/787,341,831.18 = 319,638,425.88/x - Step 3: Cross multiply
570,523,455.24x = 787,341,831.18 × 319,638,425.88 - Step 4: Simplify right side
570,523,455.24x = 251,664,703,547,851,872 - Step 5: Solve for x
x = 251,664,703,547,851,872/570,523,455.24 - Step 6: Final answer
x = 441,111,931.92
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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.